SIST EN 301 215-4 V1.1.1:2003

• Abstract:

  To study and to specify the additional requirements for antennas for MP applications, operating in the frequency band 30 to 40.5 GHz.

• Status: Published
• Publication Date: 30-Nov-2003
• ICS: 33.060.30 - Radio relay and fixed satellite communications systems
• ICS: 33.120.40 - Aerials
• Technical Committee: SS EIT - Technical Board for the electrotechnical, information technology and telecommunications fields
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 01-Dec-2003
• Due Date: 01-Dec-2003
• Completion Date: 01-Dec-2003
• Ref Project: ETSI EN 301 215-4 V1.1.1 (2003-12) - Fixed Radio Systems; Point-to-Multipoint Antennas; Antennas for multipoint fixed radio systems in the 11 GHz to 60 GHz band; Part 4: 30 GHz to 40,5 GHz

SIST EN 301 215-4 V1.1.1:2003 is the Slovenian adoption of ETSI EN 301 215-4, a European telecommunications standard for point-to-multipoint antennas in the 30 GHz to 40.5 GHz band. It specifies additional electrical requirements for linearly polarized, fixed-beam MultiPoint (MP) antennas used in Central Station, Repeater and Terminal Station applications, so engineers and test labs can check antenna pattern, gain and polarization performance.

What does SIST EN 301 215-4 V1.1.1:2003 specify?

SIST EN 301 215-4 V1.1.1:2003 specifies the additional requirements for antennas used with new MultiPoint systems in the 30 GHz to 40.5 GHz band. It is Part 4 of a multi-part series, and it works with Part 1 to define the sub-band-specific values.

The scope covers linear-polarization, fixed-beam antennas for P-MP and MP-MP systems, including Central Station, Repeater and Terminal Station applications. It excludes electronically steered antenna arrays and circularly polarized antennas.

The document is organized into five clauses:

• Scope
• References
• Definitions, symbols and abbreviations
• Electrical characteristics
• Conformance tests

In practice, that means the standard is mainly a requirements document for antenna designers, buyers and test labs. It tells them what pattern, gain and polarization behavior the antenna has to show in this band.

What are the key requirements of SIST EN 301 215-4 V1.1.1:2003?

Terminal Station antennas

Clause 4.1 covers Terminal Station (TS) antennas. The radiation pattern envelope (RPE) and gain limits apply to both horizontal and vertical linearly polarized antennas.

SIST EN 301 215-4 V1.1.1:2003 defines three TS classes, TS1, TS2 and TS3, each with its own co-polar and cross-polar envelope. Clause 4.1.2 also sets three minimum boresight gain categories: 24 dBi, 28 dBi and 32 dBi. In practice, this is how you match the antenna to the link budget and then verify that its measured pattern stays within the allowed envelope.

Central Station sectored antennas

Clause 4.2 defines four sectored Central Station (CS) azimuth classes, CS1 to CS4. The sector angle is declared by the supplier, and the templates apply across the full 30 GHz to 40.5 GHz band.

The class tables and figures define both co-polar and cross-polar limits, normalized to the maximum gain within the declared sector angle. Clause 4.2.2 adds a minimum boresight gain boundary as a function of sector angle from 15° to 180°. In practice, this matters because a wider sector still has to provide enough usable gain for the cell.

Central Station elevation and omni-directional antennas

Clause 4.3 gives a symmetric elevation RPE for sectored CS antennas. The text allows electrical tilt and mechanical tilt to be taken into account, and electrical tilt is treated as a shift along the elevation angle axis. For deployment, that means the installed tilt has to be reflected in the checked pattern.

Clause 4.4 covers CS omni-directional antennas. These need at least 8 dBi nominal gain, no more than 3 dB peak-to-peak gain ripple in azimuth, and at least 20 dB cross-polar discrimination. Clause 4.4.1 then gives symmetric and asymmetric elevation RPEs, both with a -20 dB cross-polar limit.

General electrical rules, radomes and tests

Clause 4.5 requires the antenna to radiate a linearly polarized wave. Clause 4.6 says that if a radome is used, the antenna must still meet the same gain and radiation-pattern values with the radome fitted.

Clause 5 points to EN 301 126-3-2 for conformance testing. It also allows additional implementation-specific parameters to be agreed between purchaser and supplier, which is useful when the antenna is being specified for a real system rather than only checked against the minimum standard.

What terms does SIST EN 301 215-4 V1.1.1:2003 define?

• MultiPoint (MP) - A system family in which one station serves multiple stations over fixed radio links.
• P-MP - Point-to-multipoint, the access arrangement used for these fixed radio systems.
• MP-MP - Multipoint-to-multipoint, another system form covered by the scope.
• Terminal Station (TS) - The end-user antenna category that is checked against TS class pattern and gain limits.
• Central Station (CS) - The central-site antenna category, including sectored and omni-directional forms.
• Radiation Pattern Envelope (RPE) - The allowed pattern boundary that the measured antenna response must not exceed.
• Cross-polar discrimination - The separation between co-polar and cross-polar response, used here to control unwanted polarization leakage.

Who uses SIST EN 301 215-4 V1.1.1:2003?

Antenna designers use this standard when they design TS and CS antennas for fixed radio systems in the 30 GHz to 40.5 GHz band. It tells them which pattern class, gain category and polarization behavior the antenna must meet.

Test laboratories use it for conformance testing of antenna radiation patterns, gain and polarization. Procurement teams, system integrators and network engineers use it when they need to specify what antenna performance to ask for in a MultiPoint deployment.

Regulatory authorities and spectrum planners also use it as the technical baseline for frequency coordination, and they may require tighter limits where local conditions need them.

Which standards are used with SIST EN 301 215-4 V1.1.1:2003?

• ETSI EN 301 997-1 - Gives the general requirements for the MultiPoint radio equipment context used by this antenna standard.
• ETSI EN 300 833 - Provides minimum requirements for point-to-point antennas, which this standard points to for some high-gain multipoint cases.
• ETSI EN 301 126-3-2 - Supplies the definitions, general requirements and test procedures for point-to-multipoint antenna conformance testing.
• ETSI EN 301 215-1 - Gives the general aspects, definitions, symbols and abbreviations that form the framework for this part.

What does the SIST EN 301 215-4 V1.1.1:2003 document contain?

This part contains class-based radiation pattern envelopes for TS and CS antennas, shown with tables and figures for azimuth and elevation patterns. It also contains minimum gain limits, polarization rules, and the way tilt is handled in elevation patterns.

The figures and tables are the main design and test references in the document. They let a designer or test lab compare a measured antenna response against the required envelope without interpreting free-form text.

Clause 5 gives the conformance-test route through EN 301 126-3-2. For radome-equipped antennas, the same gain and pattern checks apply with the radome in place.

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Fixed Radio Systems; Point-to-Multipoint Antennas; Antennas for multipoint fixed radio
systems in the 11 GHz to 60 GHz band; Part 4: 30 GHz to 40,5 GHz
Ta slovenski standard je istoveten z: EN 301 215-4 Version 1.1.1
ICS:
33.060.30 Radiorelejni in fiksni satelitski Radio relay and fixed satellite
komunikacijski sistemi communications systems
33.120.40 Antene Aerials
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

European Standard (Telecommunications series)

Fixed Radio Systems;
Point-to-Multipoint Antennas;
Antennas for multipoint fixed radio systems
in the 11 GHz to 60 GHz band;
Part 4: 30 GHz to 40,5 GHz
2 ETSI EN 301 215-4 V1.1.1 (2003-12)

Reference
DEN/TM-04057-4
Keywords
antenna, DFRS, DRRS, multipoint, radio, RLL,
transmission
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ETSI
3 ETSI EN 301 215-4 V1.1.1 (2003-12)
Contents
Intellectual Property Rights.4
Foreword.4
1 Scope.5
2 References.5
3 Definitions, symbols and abbreviations .5
3.1 Definitions.5
3.2 Symbols.5
3.3 Abbreviations.6
4 Electrical characteristics.6
4.1 Terminal Station antennas.6
4.1.1 TS Radiation Pattern Envelope (RPE).6
4.1.2 TS minimum antenna boresight gain .8
4.2 Central Station (CS) sectored antennas .8
4.2.1 CS azimuth Radiation Pattern Envelopes, sectored .8
4.2.2 Minimum boresight gain, sectored .11
4.3 Central station sectored elevation RPEs.11
4.4 Central Station omni-directional antennas .12
4.4.1 CS Omni Elevation RPEs .12
4.4.1.1 Symmetric elevation RPEs.13
4.4.1.2 Asymmetric elevation patterns.13
4.5 Polarization, terminal station and central station antennas.14
4.6 Radomes.14
5 Conformance tests.14
History .15

ETSI
4 ETSI EN 301 215-4 V1.1.1 (2003-12)
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
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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 present document is part 4 of a multi-part deliverable covering requirements for antennas in conjunction with
MultiPoint (MP) systems necessary to facilitate frequency co-ordination between services in the frequency bands
11 GHz to 60 GHz, as identified below:
Part 1: "General aspects";
Part 2: "24 GHz to 30 GHz";
Part 3: "Multipoint Multimedia Wireless System in 40,5 GHz to 43,5 GHz";
Part 4: "30 GHz to 40,5 GHz".
The present document is organized in the following way. Part 1 gives general information about the scope, normative
references, definitions, classification, normative and informative electrical and mechanical characteristics. Part 1 is the
framework for further parts, where distinct values of normative characteristics for a given frequency sub-band are
defined. Consequently, part 1 in combination with another part forms the EN for a given sub-band.

National transposition dates
Date of adoption of this EN: 28 November 2003
Date of latest announcement of this EN (doa): 29 February 2004
Date of latest publication of new National Standard
or endorsement of this EN (dop/e): 31 August 2004
Date of withdrawal of any conflicting National Standard (dow): 31 August 2004

ETSI
5 ETSI EN 301 215-4 V1.1.1 (2003-12)
1 Scope
The present document specifies the essential electrical requirements for linear polarization, fixed beam antennas to be
utilized with new MultiPoint (P-MP and MP-MP) systems EN 301 997-1 [1], including Central Station, Repeater and
Terminal Station applications, operating in frequency bands from 11 GHz to 60 GHz. These systems use various
multiple access schemes. Antennas may be aligned manually, by electromechanical or by switching between a set of
antennas. Electronically steered antenna arrays, and circularly polarized antennas are not considered in the present
document.
The present document, taken together with EN 301 215-1 [4], specifies the requirements for multipoint systems
operating in the frequency range 30 GHz to 40,5 GHz.
A Regulatory Authority may impose 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 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 [2].
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] ETSI EN 301 997-1: "Transmission and Multiplexing (TM); Multipoint equipment; Radio
Equipment for use in Multimedia Wireless Systems (MWS) in the frequency band 40,5 GHz to
43,5 GHz; Part 1: General requirements".
[2] ETSI EN 300 833: "Fixed Radio Systems; Point-to-point antennas; Antennas for point-to-point
fixed radio systems operating in the frequency
...