ETSI EN 302 085 V1.2.2 (2003-08)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Fixed Radio Systems; Point-to-Multipoint Antennas; Antennas for point-to-multipoint fixed radio systems in the 3 GHz to 11 GHz band33.120.40AnteneAerials33.060.30Radiorelejni in fiksni satelitski komunikacijski sistemiRadio relay and fixed satellite communications systemsICS:Ta slovenski standard je istoveten z:EN 302 085 Version 1.2.2SIST EN 302 085 V1.2.2:2003en01-december-2003SIST EN 302 085 V1.2.2:2003SLOVENSKI
STANDARD



SIST EN 302 085 V1.2.2:2003



ETSI EN 302 085 V1.2.2 (2003-08)European Standard (Telecommunications series) Fixed Radio Systems;Point-to-Multipoint Antennas;Antennas for point-to-multipoint fixed radio systemsin the 3 GHz to 11 GHz band
SIST EN 302 085 V1.2.2:2003



ETSI ETSI EN 302 085 V1.2.2 (2003-08) 2
Reference REN/TM-04143 Keywords DRRS, radio, antenna, multipoint, CDMA, FDMA, RLL, TDMA, transmission ETSI 650 Route des Lucioles F-06921 Sophia Antipolis Cedex - FRANCE
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© European Telecommunications Standards Institute 2003. All rights reserved.
DECTTM, PLUGTESTSTM and UMTSTM are Trade Marks of ETSI registered for the benefit of its Members. TIPHONTM and the TIPHON logo are Trade Marks currently being registered by ETSI for the benefit of its Members. 3GPPTM is a Trade Mark of ETSI registered for the benefit of its Members and of the 3GPP Organizational Partners. SIST EN 302 085 V1.2.2:2003



ETSI ETSI EN 302 085 V1.2.2 (2003-08) 3
Contents Intellectual Property Rights.5 Foreword.5 Introduction.5 1 Scope.6 2 References.6 3 Definitions, symbols and abbreviations.7 3.1 Definitions.7 3.2 Symbols.8 3.3 Abbreviations.8 4 Frequency bands.8 5 Types and classification of antennas.9 5.1 Antenna types.9 5.2 Antenna classifications.9 5.2.1 CS classes.9 5.2.2 TS classes.10 6 Electrical characteristics.10 6.1 Terminal Station (TS) antennas.10 6.1.1 TS Radiation Pattern Envelope (RPE).10 6.1.1.1 Range 1 (3,0 GHz to 5,9 GHz).11 6.1.1.2 Range 2 (5,9 GHz to 8,5 GHz).13 6.1.1.3 Range 3 (8,5 GHz to 11,0 GHz).14 6.1.2 TS minimum boresight gain.15 6.2 Central Station (CS) sectored single beam antennas.15 6.2.1 CS azimuth Radiation Pattern Envelope (RPE), sectored.15 6.2.1.1 Class CS 1.16 6.2.1.2 Class CS 2.16 6.2.1.3 Class CS 3.17 6.2.2 Minimum boresight gain, sectored.17 6.3 Central Station (CS) sectored multi-beam antennas.18 6.3.1 CS azimuth Radiation Pattern Envelope (RPE), sectored.18 6.3.1.1 Range 1 (3 GHz to 5,9 GHz).18 6.3.1.2 Class CSMB 1.18 6.3.1.3 Class CSMB 2.19 6.3.2 Minimum boresight gain, multi-beam.20 6.4 Central Station (CS) omni-directional antennas.21 6.5 Central Station (CS) omni and sectored elevation RPEs.21 6.5.1 Symmetric elevation RPEs.21 6.5.2 Asymmetric elevation patterns.22 6.6 Polarization, Terminal (TS) and Central (CS) Stations.23 6.7 Radomes.23 7 Conformance tests.23 Annex A (informative): Antenna characteristics.24 A.1 Mechanical characteristics.24 A.1.1 Environmental characteristics.24 A.1.2 Antenna stability.24 A.2 Antenna input connectors.24 A.3 VSWR at the input port(s).25 A.4 Inter-port isoIation.25 SIST EN 302 085 V1.2.2:2003



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A.5 Antenna labelling.25 A.6 Passive intermodulation performance.25 Annex B (informative): Bibliography.26 History.27
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Intellectual Property Rights IPRs essential or potentially essential to the present document may have been declared to ETSI. The information pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found in ETSI SR 000 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in respect of ETSI standards", which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web server (http://webapp.etsi.org/IPR/home.asp). Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee can be given as to the existence of other IPRs not referenced in ETSI SR 000 314 (or the updates on the ETSI Web server) which are, or may be, or may become, essential to the present document. Foreword This European Standard (Telecommunications series) has been produced by ETSI Technical Committee Transmission and Multiplexing (TM). The purpose of the present document is to define the antenna performance standards necessary to ensure optimum frequency co-ordination between the systems and/or different services by the Regulatory Authorities in the 3 GHz to 11 GHz band. These nominal frequency limits have been chosen to reflect the WRC 2000 Final Acts [6] and the frequency plans as given in CEPT Recommendation T/R 13-02 [1] and ITU-R Recommendation F.748 [5]. Point-to-multipoint antennas, whether integrated within station equipment or not, may need to meet environmental, mechanical and electrical characteristics not covered by the present document, in order that the systems will operate as intended. Additional parameters and characteristics may be subject to agreement between the equipment purchaser and the supplier; these are considered and guidance is provided in annex A.
National transposition dates Date of adoption of this EN: 4 July 2003 Date of latest announcement of this EN (doa): 31 October 2003 Date of latest publication of new National Standard or endorsement of this EN (dop/e):
30 April 2004 Date of withdrawal of any conflicting National Standard (dow): 30 April 2004
Introduction The purpose of the present document is to define the requirements for antennas used in conjunction with Point-to-MultiPoint (P-MP) systems necessary to facilitate frequency co-ordination between services in the frequency bands 3 GHz to 11 GHz. SIST EN 302 085 V1.2.2:2003



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1 Scope The present document specifies the essential electrical requirements for linear polarization, fixed beam antennas to be utilized with new Point-to-Multipoint (P-MP) systems, including central station and terminal station applications, operating in frequency bands from 3 GHz to 11 GHz. These systems use various multiple access schemes. Electronically steerable antennas and circularly polarized antennas are not considered in the present document. Only in exceptional circumstances, and after a consultation period with operators and manufacturers, the Regulatory Authority may impose the use of tighter requirements than the minimum values given in the present document, in order to maximize the use of scarce spectrum resources. For some high gain, point-to-multipoint requirements, antennas may be used having performance as per the appropriate point-to-point antenna standard. For these antennas, minimum requirements are given in EN 300 833 [8]. 2 References The following documents contain provisions which, through reference in this text, constitute provisions of the present document. • References are either specific (identified by date of publication and/or edition number or version number) or non-specific. • For a specific reference, subsequent revisions do not apply. • For a non-specific reference, the latest version applies. Referenced documents which are not found to be publicly available in the expected location might be found at http://docbox.etsi.org/Reference. [1] CEPT Recommendation T/R 13-02: "Preferred channel arrangements for fixed services in the range 22.0 - 29.5 GHz". [2] CEPT/ERC/REC 12-05: "Harmonised radio frequency channel arrangements for digital terrestrial fixed systems operating in the band 10.0 - 10.68 GHz". [3] CEPT/ERC/REC 14-03: "Harmonised radio frequency channel arrangements for low and medium capacity systems in the band 3400 MHz to 3600 MHz". [4] ITU-R Recommendation F.747: "Radio-frequency channel arrangements for fixed wireless systems operating in the 10 GHz band". [5] ITU-R Recommendation F.748: "Radio-frequency arrangements for systems of the fixed service operating in the 25, 26 and 28 GHz bands". [6] Final Acts - WRC - 2000, Istanbul. [7] ETSI ETS 300 019-1-4: "Equipment Engineering (EE); Environmental conditions and environmental tests for telecommunications equipment; Part 1-4: Classification of environmental conditions; Stationary use at non-weatherprotected locations". [8] ETSI EN 300 833: "Fixed Radio Systems; Point-to-point antennas; Antennas for point-to-point fixed radio systems operating in the frequency band 3 GHz to 60 GHz". [9] ETSI EN 301 126-3-2: "Fixed Radio Systems; Conformance testing; Part 3-2: Point-to-Multipoint antennas - Definitions, general requirements and test procedures". [10] IEC 60154-1: "Flanges for waveguides. Part 1: General requirements". [11] IEC 60154-2: "Flanges for waveguides. Part 2: Relevant specifications for flanges for ordinary rectangular waveguides". SIST EN 302 085 V1.2.2:2003



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[12] IEC 60169 (part 1 and applicable subparts): "Radio-frequency connectors. Part 1: General requirements and measuring methods". 3 Definitions, symbols and abbreviations 3.1 Definitions For the purposes of the present document, the following terms and definitions apply: antenna: that part of the transmitting or receiving system that is designed to transmit or receive electromagnetic radiation boresight: axis of the main beam in a directional antenna Central Station (CS): base station which communicates each way with many terminal stations and, in many cases, repeater stations co-polar pattern: diagram representing the radiation pattern of a test antenna when the reference antenna is similarly polarized, scaled in dBi or dB relative to the measured antenna gain cross-polar pattern: diagram representing the radiation pattern of a test antenna when the reference antenna is orthogonally polarized, scaled in dBi, or dB relative to the measured antenna gain cross-polar discrimination: difference between the peak of the co-polarized main beam and the maximum cross-polarized signal over an angle measured within a defined region fixed beam: radiation pattern in use is fixed relative to a defined mechanical reference plane gain: ratio of the radiation intensity in a given direction to the radiation intensity that would be obtained if the power accepted by the antenna was radiated isotropically Half Power BeamWidth (HPBW): angle, relative to the main beam axis, between the two directions at which the measured co-polar pattern is 3 dB below the value on the main beam axis inter-port isolation: ratio in dB of the power level applied to one port of a multi-port antenna to the power level received in any other port of the same antenna as a function of frequency isotropic radiator: hypothetical, lossless antenna having equal radiation intensity in all directions input port(s): flange(s) or connector(s) through which access to the antenna is provided main beam axis: direction for which the radiation intensity is a maximum main beam: radiation lobe containing the direction of maximum radiation mechanical tilt: fixed angular shift in elevation of the antenna main beam axis by a change to the physical mounting Radiation Pattern Envelope (RPE): envelope within which the radiation pattern shall fit radiation pattern: diagram relating power flux density at a constant distance from the antenna to the direction relative to the notional antenna main beam axis. Specifically referenced in EN 302 085 to the zero degree reference direction. radome: cover, of dielectric material, intended for protecting an antenna from the effects of its physical environment Repeater Station (RS): radio station providing the connection via the air to both the central station and the terminal station(s). The remote station may also provide the interfaces to the subscriber equipment, if applicable. sector angle: declared angle of coverage in azimuth of a sectored antenna, defined as 2α in EN 302 085 Terminal Station (TS): remote (out) station which communicates with a central station tilt: fixed, angular shift of the antenna main beam axis (boresight) in the elevation plane by either electrical, electronic or mechanical means SIST EN 302 085 V1.2.2:2003



ETSI ETSI EN 302 085 V1.2.2 (2003-08) 8
zero degree (0°°°°): declared direction as referenced to the antenna reference direction: mechanical characteristics, used as reference for the RPE reference beam direction: mechanical characteristics, used as reference for every beam RPE (applicable only to multi-beam antennae) 3.2 Symbols For the purposes of the present document, the following symbols apply: α Alpha (= half the sector angle) ε reference beam direction dBi Decibels relative to an isotropic source f0 Nominal centre frequency of declared antenna operating range GHz GigaHertz MHz MegaHertz ROUND ( ) Round up or down to nearest integer ABS( )
Absolute value of the number 3.3 Abbreviations For the purposes of the present document, the following abbreviations apply: CS Central Station HPBW Half Power BeamWidth P-MP Point-to-MultiPoint PIM Passive InterModulation RPE Radiation Pattern Envelope RS Repeater Station TS Terminal Station VSWR Voltage Standing Wave Ratio 4 Frequency bands The present document applies to a number of frequency ranges within the 3 GHz to 11 GHz frequency bands considered within CEPT/ERC and ETSI for allocation to the fixed services. Suitable sub-bands for allocation to point-to-multipoint use are subject to channel plans described in references CEPT/ERC/REC 12-05 [2], CEPT/ERC/REC 14-03 [3] and ITU-R Recommendation F.747 [4]. For the purpose of the present document, the overall frequency bands 3 GHz to 11 GHz are divided into three ranges as follows: • range 1: 3,0 GHz to 5,9 GHz; • range 2: 5,9 GHz to 8,5 GHz; • range 3: 8,5 GHz to 11,0 GHz. SIST EN 302 085 V1.2.2:2003



ETSI ETSI EN 302 085 V1.2.2 (2003-08) 9
5 Types and classification of antennas 5.1 Antenna types The present document addresses fixed beam antennas used in the Central (CS) and Terminal (TS) stations including Repeaters (RS). The antennas are used in a system which can generally be described as in figure 1. RS Exchange
TS
CS
TS
CS: Central Station, which is linked to all remote stations (repeater or terminal stations) by microwave transmission paths. TS: Terminal Station (outstation with subscriber interfaces). RS: Repeater Station (radio repeater outstation with or without subscriber interfaces). A RS may serve one or more TSs.
Figure 1: General point-to-multipoint system architecture These antennas shall be grouped into the following types: Central and repeater stations:
• Omni-directional; • Sectored: - Single-beam; - Multi-beam; • Directional, conforming to the requirements for TS antennas. Terminal stations: Directional. Repeater antennas can be of either Central (CS) or Terminal (TS) station types. 5.2 Antenna classifications 5.2.1 CS classes With respect to the azimuthal Radiation Pattern Envelope (RPE), three classes may be identified in different frequency sub-ranges for Central Station (CS) sectored antennas (CS1,CS2,CS3) and two classes may be identified for multi-beam antennas (CSMB1,CSMB2): • class CS 1; SIST EN 302 085 V1.2.2:2003



ETSI ETSI EN 302 085 V1.2.2 (2003-08) 10 • class CS 2; • class CS 3; • class CSMB1; • class CSMB2. These classes allow flexibility for a variety of different systems, and may be generally appropriate for low, medium and higher density deployments respectively. With respect to the azimuthal RPE for omni-directional CS antennas, no requirement for separate classes has been identified. 5.2.2 TS classes With respect to the radiation pattern envelope (RPE), a number of classes have been identified for Terminal Station (TS) directional antennas: • class TS 1; • class TS 2; • class TS 3; • etc. These classes allow flexibility for a variety of different systems and deployment conditions. 6 Electrical characteristics For the purpose of the present document, an antenna is specific to Type, Class, Range, the frequency band of operation and the mid-band gain. An antenna which employs a radome shall meet the requirements of the present document with the radome in place. A 0° reference direction shall be defined for each antenna. The radiation characteristics in the present document are all referred to this 0° reference direction. 6.1 Terminal Station (TS) antennas The RPEs and gain parameters apply for both horizontal and vertical linearly polarized antennas. 6.1.1 TS Radiation Pattern Envelope (RPE) The co-polar and cross-polar radiation patterns for both azimuth and elevation (see figure 2) shall not exceed the RPEs defined in the following list: - range 1 (3,0 GHz to 5,9 GHz): - class TS 1: table 1; - class TS 2: table 2; - class TS 3: table 3; - class TS 4: table 4; - class TS 5: table 5. SIST EN 302 085 V1.2.2:2003



ETSI ETSI EN 302 085 V1.2.2 (2003-08) 11 - range 2 (5,9 GHz to 8,5 GHz): - class TS 1: table 6; - class TS 2: table 7; - class TS 3: table 8. - range 3 (8,5 GHz to 11,0 GHz): - class TS 1: table 9; - class TS 2: table 10; - class TS 3: table 11; - class TS 4: table 12. The gain values defined are all relative to maximum, actual gain at the measured frequency. Angle relative to zero degree reference °Gain relative to zero degree reference actual gain (dB)co-polar x-polarP1P2P3P4P5Q0Q2Q1Q3180P0 Figure 2: Normalized RPE for TS azimuth and elevation 6.1.1.1 Range 1 (3,0 GHz to 5,9 GHz) Table 1: TS1, Range 1 Co-polar Angle (°) Gain (dB) P0 0 0 P1 90 0 P2 90 -10 P3 180 -10 Cross-polar Angle (°) Gain (dB) Q0 0 -15 Q1 180 -15
SIST EN 302 085 V1.2.2:2003



ETSI ETSI EN 302 085 V1.2.2 (2003-08) 12 Table 2: TS2, Range 1 Co-polar Angle (°) Gain (dB) P0 0 0 P1 12 0 P2 30 -10 P3 90 -15 P4 150 -20 P5 180 -20 Cross-polar Angle (°) Gain (dB) Q0 0 -15 Q1 90 -15 Q2 150 -20 Q3 180 -20
Table 3: TS3, Range 1 Co-polar Angle (°) Gain (dB) P0 0 0 P1 10 0 P2 20 -12 P3 70 -14 P4 150 -29 P5 180 -29 Cross-polar Angle (°) Gain (dB) Q0 0 -19 Q1 90 -19 Q2 150 -25 Q3 180 -25
Table 4: TS4, Range 1 Co-polar Angle (°) Gain (dB) P0 0 0 P1 10 0 P2 30 -17 P3 90 -17 P4 150 -30 P5 180 -30 Cross-polar Angle (°) Gain (dB) Q0 0 -20 Q1 90 -20 Q2 150 -30 Q3 180 -30
Table 5: TS5, Range 1 Co-polar Angle (°) Gain (dB) P0 0 0 P1 12 0 P2 30 -17 P3 90 -17 P4 150 -30 P5 180 -30 Cross-polar Angle (°) Gain (dB) Q0 0 -20 Q1 90 -20 Q2 100 -25 Q3 180 -25
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ETSI ETSI EN 302 085 V1.2.2 (2003-08) 13 6.1.1.2 Range 2 (5,9 GHz to 8,5 GHz) Table 6: TS1, Range 2 Co-polar Angle (°) Gain (dB) P0 0 0 P1 9 0 P2 22 -12 P3 90 -17 P4 150 -25 P5 180 -25 Cross-polar Angle (°) Gain (dB) Q0 0 -17 Q1 90 -17 Q2 150 -25 Q3 180 -25
Table 7: TS2, Range 2 Co-polar Angle (°) Gain (dB) P0 0 0 P1 8 0 P2 20 -20 P3 90 -22 P4 150 -35 P5 180 -35 Cross-polar Angle (°) Gain (dB) Q0 0 -25 Q1 90 -25 Q2 150 -35 Q3 180 -35
Table 8: TS3, Range 2 Co-polar Angle (°) Gain (dB) P0 0 0 P1 9 0 P2 22 -18 P3 90 -21 P4 150 -33 P5 180 -33 Cross-polar Angle (°) Gain (dB) Q0 0 -25 Q1 90 -25 Q2 100 -30 Q3 180 -30
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ETSI ETSI EN 302 085 V1.2.2 (2003-08) 14 6.1.1.3 Range 3 (8,5 GHz to 11,0 GHz) Table 9: TS1, Range 3 Co-polar Angle (°) Gain (dB) P0 0 0 P1 7 0 P2 15 -13 P3 90 -20 P4 130 -30 P5 180 -30 Cross-polar Angle (°) Gain (dB) Q0 0 -20 Q1 90 -20 Q2 130 -30 Q3 180 -30
Table 10: TS2, Range 3 Co-polar Angle (°) Gain (dB) P0 0 0 P1 5 0 P2 15 -20 P3 90 -30 P4 130 -40 P5 180 -40 Cross-polar Angle (°) Gain (dB) Q0 0 -30 Q1 90 -30 Q2 130 -40 Q3 180 -40
Table 11: TS3, Range 3 Co-polar Angle (°) Gain (dB) P0 0 0 P1 6 0 P2 15 -13 P3 90 -24 P4 150 -36 P5 180 -36 Cross-polar Angle (°) Gain (dB) Q0 0 -28 Q1 90 -28 Q2 100 -33 Q3 180 -33
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ETSI ETSI EN 302 085 V1.2.2 (2003-08) 15 Table 12: TS4, Range 3 Co-polar Angle (°) Gain (dB) P0 0 0 P1 10 0 P2 30 -10 P3 90 -15 P4 150 -20 P5 180 -20 Cross-polar Angle (°) Gain (dB) Q0 0 -12 Q1 90 -12 Q2 130 -17 Q3 180 -17
6.1.2 TS minimum boresight gain The TS RPEs specified in tables 1 to 12 inclusive are for maximum allowed co- and cross-polar gains, relative to boresight actual gain. The TS antenna shall meet the minimum boresight gain described by the following expression: - Minimum boresight gain = ROUND (0,85 f0 + 5) dBi; where f0 is the nominal centre frequency in GHz and ROUND ( ) means rounded to the nearest integer value. Antenna boresight (and associated gain) does not necessarily correspond to the 0° reference direction (and its associated gain). 6.2 Central Station (CS) sectored single beam antennas 6.2.1 CS azimuth Radiation Pattern Envelope (RPE), sectored The Central Station azimuth RPEs for sectored (i.e. not for multi-beam and not for omni-directional) antennas are defined in the following list for sector beamwidths in the range 15° to 180°: • class CS 1: table 13; • class CS 2: table 14; • class CS 3: table 15. Both co-polar and cross-polar patterns are defined. The sector angle defined as 2α shall be declared by the supplier. The three azimuth patterns defined below apply for all combinations of frequency and sector angle within the ranges addressed by the present document. The gain values defined are all relative to the maximum gain in the declared sector angle. a) Co-Polar RPE Point P0 is fixed whereas the positions of P1 to P5 are dependent on centre frequency and/or sector angle. Tables 13a to 15a summarize the expressions which describe all these co-polar azimuth RPE points for classes 1 to 3 respectively. b) Cross-Polar RPE Tables 13b to 15b summarize the expressions which describe the four points which define the cross-polar azimuth RPE. Point Q0 is fixed whereas the positions of Q1 to Q3 are dependent on centre frequency and/or sector angle. SIST EN 302 085 V1.2.2:2003



ETSI ETSI EN 302 085 V1.2.2 (2003-08) 16 Angle off zero degree reference (deg)Gain relative to maximum (dB)P0P1P2P3P4P5Q0Q1Q2Q3 Figure 3: Normalized CS sector antenna template for azimuth These tables shall apply for all frequencies in the 3 GHz to 11 GHz band, and where f0 is the nominal centre frequency in GHz and all expressions are rounded to the nearest integer value. 6.2.1.1 Class CS 1 Table 13a: CS Class 1 Co-polar Angle (°) Relative gain (dB) P0 0
0 P1 α + 5
0 P2 160
-20 P3 160
-20 P4 160 -20 P5 180 -20
Table 13b: CS Class 1 Cross-polar Angle (°) Relative gain (dB) Q0 0 -12 Q1 α + 5 -15 Q2 160 -20 Q3 180 -20
6.2.1.2 Class CS 2 Table 14a: CS Class 2 Co-polar Angle (°) Relative gain (dB) P0 0
0 P1 α + 5
0 P2 α + (105 - 7f0) -20 P3 195 - 7f0 -20 P4 186 - 4,4 f0 -25 P5 180 -25
SIST EN 302 085 V1.2.2:2003



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