Design of a full-band polariser used in WR-22 standard waveguide for satellite communications

• Main Authors: Soon-mi Hwang, Kwan-hun Lee
• Format: Article
• Language: English
• Published: Wiley 2014-09-01
• Series: The Journal of Engineering
• Subjects: satellite communication; waveguide polarisers; rectangular waveguides; WR-22 standard waveguide; satellite communications; full-band waveguide polariser; systematic design method; electromagnetic simulation software; high-frequency structure simulator; WR-22 waveguide band; phase difference; insertion loss; iris polariser; frequency 33 GHz to 50 GHz
• Online Access: http://digital-library.theiet.org/content/journals/10.1049/joe.2014.0216

This paper studies design of a full-band waveguide polariser using iris for satellite communications. Operation theory and design parameters of a full-band polariser are introduced, and a systematic design method has been proposed. The performance of the polariser is analysed using the well-known commercial electromagnetic simulation software high-frequency structure simulator. Using the proposed method, a full-band polariser operating in WR-22 waveguide band (33–50 GHz) is designed, fabricated and tested. Measurements of the fabricated polariser show that the phase difference is <10° as a reference point by 90°, the axial ratio is <1.3 dB, insertion loss is <0.1 dB and return loss is >25 dB in the required overall band.