1、ETSI EN 300 833 1.4.1 (2002-11) European Sfandard (Telecommunicafions series) 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 2 ETSI EN 300 833 VI .4.1 (2002-1 1) Reference REN/TM-04132 Keywords antenna, DR
2、RS, point-to-point, radio, transmission, DFRS ETSI 650 Route des Lucioles F-O6921 Sophia Antipolis Cedex - FRANCE Tel.: +33 4 92 94 42 O0 Fax: +33 4 93 65 47 16 Siret No 348 623 562 00017 - NAF 742 C Association but non lucratif enregistre la Sous-prfecture de Grasse (06) No 7803/88 Important notice
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6、the foregoing restriction extend to reproduction in all media. O European Telecommunications Standards Institute 2002. All rights reserved. DECTTM, PLUGTESTSTMand UMTSTMare Trade Marks of ETSI registered for the benefit of its Members. TIPHONTM and the TIPHON logo are Trade Marks currently being reg
7、istered 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. ETSI 3 ETSI EN 300 833 VI . 4.1 (2002-1 1) Contents Intellectual Property Rights 4 Foreword . 4 Introduction 4 1 2 3 3.1 3.2 3.3 4 5 6 6.1
8、 6.2 6.3 7 Scope 5 References 5 Definitions, symbols and abbreviations . 5 Definitions . . 5 Symbols . . 6 Abbreviations . 6 Frequency ranges 7 Classification of antennas . 7 Electrical characteristics . 8 Radiation Pattern Envelope (RPE) . 8 Cross-Polar Discrimination (XPD) . 29 Antenna gaiil . . 3
9、0 Conformance tests 30 Annex A (informative): Additional information 31 A . 1 Mechanical characteristics . 31 A . 1.1 Environmental characteristics . . 31 A.1.2 Antenna stability . . 31 A.2 Antenna input connectors . 31 A.3 Return loss at the input ports 32 A.4 Inter-port isolation 32 A.5 Antenna la
10、belling . 32 History 34 Annex B (informative): Bibliography . 33 ETSI 4 ETSI EN 300 833 VI .4.1 (2002-1 1) 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 publi
11、cly available for ETSI members and non-members, and can be found in ETSI SR O00 3 14: “Intellectual Property Rights (7PRs); Essential, orpotentially Essential, IPRs notlJied to ETSI in respect ofETSI standards“, which is available from the ETSI Secretariat. Latest updates are available on the ETSI W
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13、l to the present document. Foreword This European Standard (Telecommunications series) has been produced by ETSI Technical Committee Transmission and Multiplexing (TM). Due to recent increasing interest in this frequency range, the standard has been revised three times, leading to publication of ver
14、sions 1.2.1, 1.3.1 and 1.4.1. A short description of the differences in FR5 for these versions is given below: V1.2.1: V1.3.1: 3 classes (1, 2 and 3), the RPE for class 3 is specified for V polarization only. 4 classes (1, 2, 3 and 4), the RPE for class 3 is the same as 1.2.1 but it is valid for bot
15、h H and V; class 4 is less stringent than class 3. 3 classes (1, 2 and 3), class 3 give three specifications (3a, 3b and 3c); as class numbers increase, this indicates improved performance. V1.4.1: The RPE for class 3a (equivalent to the class 3 given in versions 1.2.1 and 1.3.1) is now specified fo
16、r V polarization only. The RPE for class 3b (the copolar horizontal polarization values are equivalent to the class 4 given in version 1.3.1) is now specified for both polarizations, and the crosspolar values have been improved. The RPE for class 3c is specified for both polarizations. National tran
17、sposition dates Date of adoption of this EN: Date of latest announcement of this EN (doa): Date of latest publication of new National Standard or endorsement of this EN (dop/e): Date of withdrawal of any conflicting National Standard (dow): 1 November 2002 28 February 2003 3 1 August 2003 3 1 August
18、 2003 I n t rod uct ion The purpose of the present document is to defie only those antenna parameters necessary to ensure optimum frequency Co-ordination between communication services in the frequency range 3 GHz to 60 GHz. Additional parameters appropriate to system implementation may be subject t
19、o agreement between the equipment purchaser and supplier. Further guidance is provided in annex A. ETSI 5 ETSI EN 300 833 VI .4.1 (2002-1 1) 1 Scope The present document addresses the minimum requirements for single main beam, linear polarization, directional antennas to be adopted in conjunction wi
20、th Point-to-Point (P-P) systems operating in the frequency range 3 GHz to 60 GHz. Single polarization antennas, dual polarization antennas, dual bandsingle polarized antennas and dual banddual polarization antennas are considered. A regulatory authority may impose tighter requirements than the minim
21、um values given in the present document, in order to maximize the use of the scarce spectrum resources. 2 Re fe re nces The following documents contain provisions which, through reference in this text, constitute provisions of the present document. References are either specific (identified by date
22、of publication andor 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. il 21 WRC-2000: “Final Acts of the World Radiocommunication Conference (WRC-2000)“ ITU-R Recommendation F.746
23、-6: “Radio-frequency channel arrangements for fixed service systems“. IEC 60835-2-2 (1994): “Methods of measurement for equipment used in digital microwave transmission systems - Part 2: Measurements on terrestrial radio-relay systems - Section 2: Antenna“. 31 41 ETSI EN 301 126-1: “Fixed Radio Syst
24、ems; Conformance testing; Part 1: Point-to-point equipment - Definitions, general requirements and test procedures“. 3 3.1 Definitions, symbols and abbreviations De fi nit ions For the purposes of the present document, the following terms and definitions apply: antenna inter-port isolation: ratio in
25、 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 function of frequency antennas: part of the transmitting or receiving system that is designed to radiate andor receive electromagnetic waves Co-polar pattern: diagr
26、am representing the radiation pattern of the antenna under test when the reference antenna is similarly polarized, scaled in dBi or dB relative to the measured antenna gain cross-polar discrimination: difference in dB between the Co-polarized main beam gain and the cross-polarized signal measured wi
27、thin a defined region cross-polar pattern: diagram representing the radiation pattern of the antenna under test when the reference antenna is orthogonally polarized, scaled in dBi or dB relative to the measured antenna gain frequency band: frequency band of an antenna is the band of frequencies over
28、 which the performance characteristics of the antenna are within specified limits ETSI 6 ETSI EN 300 833 VI .4.1 (2002-1 1) gain: ratio of the radiation intensity, in the main beam axis to the radiation intensity that would be obtained if the power accepted by the antenna was radiated isotropically
29、(value measured in dBi) half power beamwidth: 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 input port(s): Flange(s) or connector(s) through which access to the antenna system is provided. This i
30、s shown in the following figure 1 at points D and D. NOTE: The points shown above are reference points only; points B, C and D, B, C and D may coincide. Figure 1: System block diagram isotropic radiator: hypothetical, lossless antenna having equal radiation intensity in all directions main beam axis
31、: direction for which the radiation pattern intensity is the maximum main beam: radiation lobe containing the direction of maximum radiation radiation pattern envelope: envelope below which the radiation pattern shall fit radiation pattern: diagram relating power flux density at a constant distance
32、from an antenna to direction relative to the antenna main beam axis radome: cover of dielectric material, intended for protecting an antenna from the effects of the physical environment 3.2 Symbols For the purposes of the present document, the following symbols apply: dB deciBel dBi GHz GigaHertz de
33、ciBels relative to an isotropic radiator 3.3 Abbreviations For the purposes of the present document, the following abbreviations apply: P-P Point-to-Point RPE Radiation Pattern Envelope VSWR Voltage Standing Wave Ratio WRC World Radiocommunication Conference XPD Cross-Polar Discrimination ETSI 7 ETS
34、I EN 300 833 VI .4.1 (2002-1 1) 4 Frequency ranges The present document applies to sub-bands within 3 GHz to 60 GHz frequency band. Fixed link frequency allocations are in accordance with the WRC-2000 11 as given in ITU-R Recommendation F.746-6 2 and other frequency plans. For the purposes of the pr
35、esent document, the overall frequency range 3 GHz to 60 GHz is divided into six frequency ranges as follows: Range 1: 3 GHz to 14 GHz; Range 2: 14 GHz to 20 GHz; Range 3: 20 GHz to 24 GHz; Range 4: 24 GHz to 30 GHz; Range 5: 30 GHz to 47 GHz; Range 6: 47 GHz to 60 GHz. 5 Classification of antennas W
36、ith respect to antenna gain, two gain categories are applicable: Gain category 1 : those antennas which require low gain for Co-ordination purposes; Gain category 2: those antennas which require high gain for Co-ordination purposes. With respect to Radiation Pattern Envelope (WE), four classes have
37、been identified: Class 1 : Those antennas required for use in networks where there is a low interference potential. Typical examples of a low interference potential might be: - antennas for use in radio networks where there is a low density deployment, and therefore, a low potential for inter- and i
38、ntra-system interference, and where high capacity digital radio is proposed; antennas for use in radio networks where there is a medium potential for inter- and intra-system interference, and where low capacity digital radio is proposed. - Class 2: Those antennas required for use in networks where t
39、here is a high interference potential. Typical examples of a high interference potential might be: - antennas for use in radio networks where there is a medium potential for inter- and intra-system interference, and where high capacity digital radio is proposed; antennas for use in radio networks wh
40、ere there is a high density deployment, and therefore, a high potential for inter- and intra-system interference, and where low capacity digital radio is proposed. - Class 3: Those antennas required for use in networks where there is a very high interference potential. Typical examples of a very hig
41、h interference potential might be: - antennas for use in radio networks where there is a high density deployment, and therefore, a high potential for inter- and intra-system interference, and where high capacity digital radio is proposed. Class 4: Those antennas required for use in networks where th
42、ere is an extremely high interference potential Typical examples of an extremely high interference potential might be: - antennas for use in radio networks where there is a very high density deployment, and therefore, a very high potential for inter- and intra-system interference, and where high cap
43、acity digital radio is proposed. In frequency bands where spectrum congestion is likely to exist, the regulator may insist on the use of higher class antennas. ETSI 8 ETSI EN 300 833 VI .4.1 (2002-1 1) With respect to cross-Polar Discrimination (XPD), three XPD performance categories have been ident
44、ified (refer to clause 6.2, table 1): XPD category 1: those antennas required to have standard cross-polar discrimination. XPD category 2: those antennas required to have high cross-polar discrimination. XPD category 3: those antennas required to have high cross-polar discrimination in extended angu
45、lar region. Electrical characteristics The antenna manufacturer shall state, for each antenna type, the frequency band of operation and antenna gain at least at the frequency band edges and at mid-band. An antenna which employs a radome shall meet the requirements of the present document with the ra
46、dome in place. The antenna system shall radiate a linear (single or dual) polarized wave. The method of measurement shall be in accordance to IEC 60835-2-2 3. 6.1 Radiation Pattern Envelope (RPE) RPE(s) for each class are included, in order to present the maximum flexibility to administrations for o
47、ptimized Co-ordination. The Co-polar and cross-polar radiation pattern measured in the azimuth plane for both polarizations, shall not exceed the RPE(s) defied in the following list: Range 1: Range 2: Range 3: Range 4: Class 1: figure 2a); Class 2: figure 2b); Class 3: figure 2c); Class 4: figure 2d
48、). Class 1: figure 3a); Class 2: figure 3b); Class 3: figure 3c). Class 1: figure 4a); Class 2: figure 4b); Class 3: figure 4c). Class 1: figure 5a); Class 2: figure 5b). ETSI 9 20 Range 5: 12 15 5 ETSI EN 300 833 VI .4.1 (2002-1 1) 50 Range 6: 5 30 -2 Class 1: figure 6a); Class 2: figure 6b); Class
49、 3a: figure 6c); vertically polarized only Class 3b: figure 6d) Class 3c: figure 6e) 170 Class 1: figure 7a); Class 2: figure 7b); Class 3: figure 7c), vertically polarized only. -6 180 -8 Frequency range 1 3 GHz to 14 GHz 180 O -6 20 40 60 80 1 O0 120 140 160 Angle of azimuth relative to main beam axis (degree) - Co polar (dBi) - Cross polar (dBi) Co-polar I Angle I Cross-polar I 180 Figure 2a): RPEs for class 1 antennas in the frequency range 1 ETSI 30 20 10 A mo 0 C .- 8 -IO -20 -30 -40 Angle (degrees) 5 10 Frequency range 1 3 GHz to 14 GHz Co-polar Angle Cross-
