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The high-voltage FET amplifier (HVFA) configuration for power amplifier applications in satellite communications and phased-array systems can offer substantial improvement in DC-to-RF conversion efficiency.
For a 41-element array with high antenna coupling at low frequencies, the proposed method shows as much as 80% improvement in the Trec over conventional LNA design strategies that do not account for the intended use of the amplifier in an array.
We propose a compact, high-efficiency antenna configuration, which is 18 cm in diameter and has average gain of 24.1 dBi for automotive applications of satellite TV systems operating at Ku band.
Due to the self-mixing, compared to conventional antenna arrays, the proposed antenna array is able to receive signals with enhanced power from a wide angular range.
The assumed amplifier large-signal characteristics of the active antenna agree with those of the single-stage amplifier.
The good electrical performances make the antenna suitable for the wireless communication systems and phased arrays.
Therefore, the antenna proposed herein is very suitable to various digital TV applications for high-performance receiving.
The proposed antenna is suitable for integration into an array for satellite TV receivers.
Proceedings ArticleDOI
Chih-Yu Tsai, Oscal T.-C. Chen 
18 Oct 2012
6 Citations
Therefore, the proposed antenna has a wide impedance-matching bandwidth, good radiation patterns and fairly high gains for digital TV applications.
Experimental results show that the proposed CP antenna array is suitable for applications of Ku-band mobile satellite TV reception.

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