Polarisation switchable microstrip array antenna using proximity feeding technique

Polarisation switchable microstrip array antenna using proximity feeding technique

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A polarisation switchable microstrip array antenna is presented. This array consists of square patch antennas coupled in close proximity to a microstrip line. The polarisation state can be switched electrically by short- or open-circuiting the end of the feedline using a PIN diode. Fundamental characteristics of the proposed array are investigated by measurements performed at S-band to demonstrate the proposal.


    1. 1)
      • R. Garg , P. Bhartia , I. Bahl , A. Ittipiboon . (2000) Microstrip antenna design handbook.
    2. 2)
      • Itoh, K., Ohtsuka, H.: `New polarization switching technique of microstrip antenna', Proc. 12th European Microwave Conference, 1982, Helsinki, Finland, p. 349–354.
    3. 3)
      • Miyazaki, T., Itoh, K.: `Analysis and design on a proximity fed microstrip antenna', Proc. Int. Symp. on Antennas and Propagation, 1996, Chiba, Japan, 2, p. 545–548.
    4. 4)
      • Agilent Technologies HSMP-389x and HSMP-489x series surface mount RF PIN switch diodes technical data.

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