Active aperture-coupled leaky-wave antenna |
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| Authors: | Nien-An Kao Cheng-Chi Hu Jin-Jei Wu Jou C.F. |
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| Affiliation: | Inst. of Commun. Eng., Nat. Chiao Tung Univ., Hsinchu; |
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| Abstract: | An active aperture-coupled leaky-wave antenna which is integrated with a varactor-tuned high electron mobility transistor voltage-controlled oscillator (HEMT VCO) is presented. To excite the first higher mode of the microstrip, the aperture-coupled structure is used and a sequence of covered wire is added at the centre of this antenna to suppress the dominant mode. The measured H-plane main beam can be continuously scanned 10° as the HEMT VCO frequency is varied from 9.05 to 9.5 GHz. This feeding structure is very suitable for active phase antenna array applications |
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