A Broadband Reconfigurable Load Modulated Balanced Amplifier (LMBA)
A Broadband Reconfigurable Load Modulated Balanced Amplifier (LMBA)
复制标题
宽带可重构负载调制平衡放大器(LMBA)
DOI:
10.1109/mwsym.2017.8058743
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发表时间:
2017
期刊:
影响因子:
--
通讯作者:
S. Cripps
中科院分区:
文献类型:
--
作者:
D. Shepphard;J. Powell;S. Cripps
The Load Modulated Balanced Amplifier (LMBA) uses a control signal (CSP), injected to the normally terminated port at the output coupler of a balanced amplifier (BA), to modulate the BA transistor's impedance. The hybrid circuit demonstrator described here uses metal-backed multilayer organic substrate and GaN discrete devices. Maximum output power levels above 39.5 dBm are achieved at around P3dB. DE above 60% is seen between 4.5 and 7.5 GHz for power back-off to 7 dB with a fixed CSP of 1 W, and the bias between 18 to 28 V.