Improvement in antenna factor measurements using time-domain gating

Kashyap, S.; Mishra, S.R.

doi:10.1109/isemc.1988.14092

Cited by 10 publications

(4 citation statements)

References 1 publication

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“…Time-gating is a well-known approach in different fields including antenna measurements [8]. The idea in time-gating is to multiply a time signal with a window in time to extract only the intended part of the signal.…”

Section: Time-gating Methodsmentioning

confidence: 99%

Ground calibration of antenna arrays for complex platforms

Elbir

Tuncer

2013

2013 IEEE International Symposium on Phased Array Systems and Technology

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When antenna arrays are placed on platforms, antenna patterns and antenna characteristics change significantly. Calibration of antenna arrays becomes an inevitable and important task to correct the imperfections due to the antenna surroundings. In this paper, a time-gating method is proposed to calibrate the direction finding antenna array on a UH-60 helicopter on ground. The helicopter is placed above the ground plane whereas the source antenna is further away to account for the reflections from the helicopter appropriately. It is shown that the proposed approach can be used effectively to eliminate the ground reflections and obtain accurate calibration data. This technique is both effective and a cost cutting approach for array calibration.

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Section: Time-gating Methodsmentioning

confidence: 99%

Ground calibration of antenna arrays for complex platforms

Elbir

Tuncer

2013

2013 IEEE International Symposium on Phased Array Systems and Technology

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“…It is obvious from (1) (2) that the changes in A and 11,12 influence the phase of F and T, and the denominators in (1) and (2) In the next step, arg F1 and arg F must be measured to determine A arg T . Fortunately, the technique of time-gating is widely used in antenna and RCS measurement to filter the interferences including direct leakage from the feed antenna and multi-path effect [4]. It is reasonable to make use of this technique to distinguish the interesting reflecting points and filter the uninteresting ones.…”

Section: Theoretical and Experimental Setupmentioning

confidence: 99%

A Time-Gating-Based Method for Correcting Phase Errors Caused by Cable Flexing in Planar Near-Field Measurements

Wan¹,

Xiande²,

He³

et al. 2006

2006 7th International Symposium on Antennas, Propagation &Amp; EM Theory

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“…Zemin yansımaları zamanda pencereleme yöntemi kullanılarak kaldırılmıştır. Zamanda pencereleme yöntemi antenölçümleri için yaygın kullanılan bir yöntem olmasına karşın [3], [4], yön bulma antenlerinin kalibrasyonu için dahaönce kullanılmamıştır. Kalibrasyon işlemi hava …”

Section: Introductionunclassified

Ground calibration of antenna arrays for aeronautical vehicles

Elbir

Tuncer

2013

2013 21st Signal Processing and Communications Applications Conference (SIU)

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Ozetçe -Anten dizileri hava araçları gibi platformlarda kullanıldıgında antenörüntüsü veözellikleri büyükölçüde degişir. Anten çevresindeki eksiklikleri düzeltmek için anten dizilerinin kalibrasyonuönemli ve kaçınılmaz bir görevdir. Bu makalede UH-60 model helikoptere yerleştirilmiş ve yön bulmak için kullanılan bir anten dizisinin kalibrasyonu için bir yöntemönerilmiştir.Önerilen yöntemin yerden yansımaları etkin bir şekilde giderdigi ve dogru kalibrasyon verisi oluşturdugu gösterilmiştir. Bu yöntem hem çok etkin hem de anten dizisinin kalibrasyonu için az maliyetli bir yaklaşımdır.Abstract-When antenna arrays are placed on platforms, antenna patterns and antenna characteristics change significantly. Calibration of antenna arrays becomes an inevitable and important task to correct the imperfections due to the antenna surroundings. In this paper, a method is proposed to calibrate the direction finding antenna array on a UH-60 helicopter on ground. It is shown that the proposed approach can be used effectively to eliminate the ground reflections and obtain accurate calibration data. This technique is both effective and a cost cutting approach for array calibration.

show abstract

Improvement in antenna factor measurements using time-domain gating

Cited by 10 publications

References 1 publication

Ground calibration of antenna arrays for complex platforms

Ground calibration of antenna arrays for complex platforms

A Time-Gating-Based Method for Correcting Phase Errors Caused by Cable Flexing in Planar Near-Field Measurements

Ground calibration of antenna arrays for aeronautical vehicles

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