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Aperture-coupled active antenna with push-pull oscillator

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3 Author(s)
Lee, K.-J. ; Dept. of Radio Sci. & Eng., Korea Univ., Seoul, South Korea ; Jeon, K.-I. ; Kim, Y.-S.

A new aperture-coupled active antenna with a push-pull oscillator is proposed. The generated power of the push-pull oscillator is electromagnetically coupled to the radiating patch via a coupling aperture. By changing the DC bias voltage, the linear frequency tuning range is achieved. The even-order modes in the radiated harmonics are noticeably suppressed owing to the odd mode excitation via the symmetry of the push-pull circuit and the shorting wall of the radiating patch.

Published in:

Electronics Letters  (Volume:47 ,  Issue: 19 )