Circular polariser for use in a gyro-travelling wave amplifier

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3 Citations (Scopus)

Abstract

A corrugated rectangular waveguide, commonly used in radio frequency antennas applications, was considered for use in a gyro-TWA experiment. This waveguide transducer produced broadband circularly polarised radiation in the Ka-band frequency range (26??40 GHz). Computer simulations, using computer simulation technology Microwave Studio??, were carried out and predicted return losses exceeding 30 dB and a 6° phase variation for 20% bandwidth centred at 31 GHz. Comparison between experimental measurements and simulations showed good agreement. The performance of this polariser was also compared to that of a conventional elliptical converter. Owing to its broadband performance the authors consider some of the technical aspects of applying this component to a Ka-band gyro-TWA experiment.
Original languageEnglish
Pages (from-to)942-948
Number of pages7
JournalIET Microwaves, Antennas & Propagation
Volume7
Issue number11
DOIs
Publication statusPublished - 20 Aug 2013

Fingerprint

traveling wave amplifiers
computerized simulation
corrugated waveguides
broadband
polarized radiation
Rectangular waveguides
rectangular waveguides
Studios
Computer simulation
Frequency bands
converters
Transducers
radio frequencies
transducers
Waveguides
antennas
frequency ranges
Experiments
Microwaves
Antennas

Keywords

  • circular polariser
  • gyro-travelling
  • wave amplifier

Cite this

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abstract = "A corrugated rectangular waveguide, commonly used in radio frequency antennas applications, was considered for use in a gyro-TWA experiment. This waveguide transducer produced broadband circularly polarised radiation in the Ka-band frequency range (26??40 GHz). Computer simulations, using computer simulation technology Microwave Studio??, were carried out and predicted return losses exceeding 30 dB and a 6° phase variation for 20{\%} bandwidth centred at 31 GHz. Comparison between experimental measurements and simulations showed good agreement. The performance of this polariser was also compared to that of a conventional elliptical converter. Owing to its broadband performance the authors consider some of the technical aspects of applying this component to a Ka-band gyro-TWA experiment.",
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AU - Whyte, Colin

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AB - A corrugated rectangular waveguide, commonly used in radio frequency antennas applications, was considered for use in a gyro-TWA experiment. This waveguide transducer produced broadband circularly polarised radiation in the Ka-band frequency range (26??40 GHz). Computer simulations, using computer simulation technology Microwave Studio??, were carried out and predicted return losses exceeding 30 dB and a 6° phase variation for 20% bandwidth centred at 31 GHz. Comparison between experimental measurements and simulations showed good agreement. The performance of this polariser was also compared to that of a conventional elliptical converter. Owing to its broadband performance the authors consider some of the technical aspects of applying this component to a Ka-band gyro-TWA experiment.

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