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Approved for public release by AR RF/Microwave Instrumentation 

061813

 

160 School House Road Souderton, PA 18964-9990 • 215-723-8181 • www.arworld.us 

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Model ATH18G40 

Antenna 

18GHz–40GHz 

 

The Model ATH18G40 is a wide band, high gain, high power microwave horn antenna. With a minimum gain 

of 15.2dB over isotropic, the Model ATH18G40 supplies the high intensity fields necessary for RFI/EMI field 
testing within and beyond the confines of a shielded room. The Model ATH18G40 is extremely compact and 
light weight for ready mobility, yet is built tough enough for the extra demands of outdoor use and easily 
mounts on a rigid waveguide by the waveguide flange. Part of a family of microwave frequency antennas, the 

Model ATH18G40 provides the 18-40GHz response required for many often used test specifications. 

 

The ATH18G40 can also be custom calibrated to the user’s requirement for use in RF emission testing. The 

calibrated model is designated by adding a ‘CC’ suffix to the model. Calibration details must be provided 
using Form 701. Contact factory for details. 

 

The export classification for this equipment is EAR99.  These commodities, technology or software are 
controlled for export in accordance with the U.S. Export Administration Regulations. Diversion contrary to U.S. 
law is prohibited. 

 

SPECIFICATIONS 

 

FREQUENCY RANGE .................................................... 18-40GHz 

 

POWER INPUT (maximum) ............................................ 450 watts CW 

 

2000 watts Peak 

 

POWER GAIN (over isotropic) ........................................ See  Graph 

 

VSWR 

 Maximum 

.............................................................. 

1.5:1 

 Average 

................................................................. 

1.3:1 

 

BEAM WIDTH (average) 
 E 

Plane 

.................................................................. See  Graph 

 

H Plane ................................................................. See Graph 

 

CONNECTOR .............................................................. WRD 180 C24 waveguide  

 

MOUNTING PROVISIONS ............................................. Waveguide  flange 

 

WEIGHT (maximum) ..................................................... 56.7 g (0.125 lbs) 

 

SIZE (WxHxD) ................................................................ 3.73 x 2.69 x 6.27 cm, (1.47 x 1.06 x 2.47 in) 

 

Summary of Contents for 10009545

Page 1: ...Operating and Service Manual ATH18G40 Model 10009545 Part Number Serial Number 160 School House Road Souderton PA 18964 215 723 8181 Fax 866 859 0582 www arworld us ...

Page 2: ...2 ...

Page 3: ...iction of the use of certain hazardous substances in electrical and electronic equipment recast RECYCLING WEEE DIRECTIVE 2012 19 EU OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL of 4 July 2012 on waste electrical and electronic equipment WEEE recast SUBSTANCES OF VERY HIGH CONCERN REACH REGULATION EC 1907 2006 OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL of 18 December 2006 concerning the Registr...

Page 4: ...4 ...

Page 5: ... clearance on all vented sides of the equipment to permit the airflow required for proper ventilation Do not restrict airflow into the equipment by blocking any vents or air intakes Restricting airflow can result in damage to the equipment intermittent shut downs or safety hazards Keep equipment away from extremely hot or cold temperatures to ensure that it is used within the specified operating r...

Page 6: ...na assembly may be heavy requiring two persons to lift Use caution when installing or removing unit Follow all equipment setup and lifting instructions specified in this document Ensure connectors are appropriate for intended operation Connectors are specified in the user manual and product specification sheet Do not exceed the maximum RF input level stated in the specifications Refer to the user ...

Page 7: ...von 10 2 cm 4 in auf allen belüfteten Seiten des Geräts ein um eine ausreichende Luftzirkulation zu gewährleisten Beinträchtigen Sie den Luftstrom des Geräts nicht indem Sie Lüftungsöffnungen oder den Lufteinlass blockieren Wird der Luftstrom eingeschränkt kann dies zu Schäden am Gerät periodischen Abschaltungen und anderen Gefahren führen Halten Sie das Gerät von extrem heißen oder kalten Tempera...

Page 8: ...n in diesem Dokument angegebenen Anweisungen zur Anbringung Stellen Sie sicher dass alle Anschlüsse für den beabsichtigten Betrieb geeignet sind Informationen zu den Anschlüssen erhalten Sie im Benutzerhandbuch und im Produktspezifikationsblatt Überschreiten Sie nicht den in Spezifikationen angegebenen maximalen HF Eingangspegel Informationen zum geeigneten HF Pegel erhalten Sie im Benutzerhandbuc...

Page 9: ...imitez pas le flux d air allant dans l équipement en bloquant tout évent ou entrée d air La restriction du flux d air peut endommager l équipement causer des coupures intermittentes ou des dangers pour la sécurité Tenez l équipement à l écart de températures extrêmement chaudes ou froides pour veiller à ce qu il soit utilisé dans la plage de fonctionnement indiquée Lorsque vous installez des acces...

Page 10: ...z prudent lorsque vous installez ou retirez l unité Respectez toutes les instructions concernant l installation et le levage de l équipement indiquées dans ce document Assurez vous que les connecteurs sont appropriés pour l utilisation prévue Les connecteurs sont indiqués dans le manuel d utilisation et la fiche signalétique du produit Ne dépassez pas le niveau d entrée RF maximal indiqué dans les...

Page 11: ...g is voor goede ventilatie mogelijk te maken Belemmer de luchtstroom in het apparaat niet door ventilatieopeningen of luchtinlaten te blokkeren Het belemmeren van de luchtstroom kan leiden tot schade aan het apparaat onregelmatige uitvallen of veiligheidsrisico s Houd het apparaat uit de buurt van extreem hoge of lage temperaturen om ervoor te zorgen dat het apparaat binnen het gespecificeerde wer...

Page 12: ...instellen en optillen van de apparatuur die in dit document worden vermeld Zorg ervoor dat de connectoren geschikt zijn voor de beoogde werking De connectoren worden gespecificeerd in de gebruikershandleiding en in het productspecificatieblad Overschrijd het maximale RF ingangsniveau niet dat in de specificaties is vermeld Raadpleeg de gebruikershandleiding en het productspecificatieblad om de toe...

Page 13: ... 1 1 2 Specifications 1 1 3 Performance Data 1 1 4 Installation 1 1 4 1 Connections 2 1 4 2 Power Amplifier Selection 2 1 4 3 General Caution Notes 2 2 TYPICAL CURVES 5 3 OUTLINE DRAWING 7 4 POLARIZATION OF HORN ANTENNAS 9 Tables 1 1 Model ATH18G40 Typical Beam Width E Plane and H Plane 1 ...

Page 14: ...ii ...

Page 15: ...d specifications including Voltage Standing Wave Ratio VSWR for the Model ATH18G40 1 3 PERFORMANCE DATA Typical Gain versus Frequency and Calculated Field Strength 1m and 3m versus Frequency data for the Model ATH18G40 are included in Section 2 of this manual Typical Beam Width E Plane and H Plane data for the Model ATH18G40 is presented in Table 1 1 Table 1 1 Model ATH18G40 Typical Beam Width E P...

Page 16: ... Series MW Traveling Wave Tube TWT amplifiers available from AR RF Microwave Instrumentation Proper waveguide adapters must be used to interface the amplifier to the AT 4560 1 4 3 General Caution Notes CAUTION The Model ATH18G40 is capable of generating output voltages that are dangerous to human life and can cause serious MW burns to human tissue Therefore never stand or walk in front of the ante...

Page 17: ... provides the 18 40GHz response required for many often used test specifications The ATH18G40 can also be custom calibrated to the user s requirement for use in RF emission testing The calibrated model is designated by adding a CC suffix to the model Calibration details must be provided using Form 701 Contact factory for details The export classification for this equipment is EAR99 These commoditi...

Page 18: ... Plane Beamwidth E Plane Beamwidth Gain H E ATH18G40 CALCULATED FIELD STRENGTH 1 METER 10 100 1000 Field Strength V m 15 20 25 30 35 40 Frequency GHz 1W 2W 5W 10W 20W 50W 100 500 1000 100 200 500 ATH18G40 CALCULATED FIELD STRENGTH 3 METERS 10 100 1000 Field Strength V m 15 20 25 30 35 40 Frequency GHz 1W 2W 5W 10W 20W 50W 100 500 1000 100 200 500 ...

Page 19: ...IN dBi 1 0 2 0 3 0 3dB BEAM WIDTH DEGREES 1 5 2 0 2 5 3 0 3 5 4 0 F R E Q U E N C Y G H z H P la n eB e a m w id t h E P la n eB e a m w id t h G a in A T H 1 8 G 4 0G A I N 3 d BB E A M W I D T H V SF R E Q H E 1 0 1 0 0 1 0 0 0 Field Strength V m 1 5 2 0 2 5 3 0 3 5 4 0 F r e q u e n c y G H z A T H 1 8 G 4 0C a lc u l a t e dF ie ldS t r e n g t h 1M e t e r 1 W 2 W 5 W 1 0 W 2 0 W 5 0 W 1 0 0 ...

Page 20: ...40 6 Rev B ATH18G40 Calculated Field Strength 3 Meters 1 0 1 0 0 1 0 0 0 Field Strength V m 1 5 2 0 2 5 3 0 3 5 4 0 F r e q u e n c y G H z 1 W 2 W 5 W 1 0 W 2 0 W 5 0 W 1 0 0 5 0 0 1 0 0 0 1 0 0 2 0 0 5 0 0 ...

Page 21: ...Rev B 7 3 OUTLINE DRAWING An outline drawing Drawing Number 10009544 of the Model ATH18G40 Microwave Horn Antenna is shown below Drawing 10009544 Rev A ...

Page 22: ...ATH18G40 8 Rev B ...

Page 23: ...Rev B 9 4 POLARIZATION OF HORN ANTENNAS ...

Page 24: ...ATH18G40 10 Rev B ...

Page 25: ... cover If the security label is removed and or cut the warranty of the module will be voided Vacuum tubes in the L series amplifiers traveling wave tubes in TWT amplifiers and power heads will be free from defects in material and workmanship for a period of one 1 year Contact AR RF Microwave Instrumentation for warranty information regarding items not listed Seller s sole responsibility in fulfill...

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