报道了一种新型的C波段0.5μm PHEMT单片低功耗低噪声放大器.该放大器由三级级联构成,采用电流回收技术,实现了低功耗的目的.芯片面积为2.1×1.8 mm2,直流功耗为125 mW(VD=5 V,ID≤25 mA).封装后测试结果为:在C波段,带宽1.1 GHz,增益>25.7dB,增益平坦度≤±0.6dB,噪声系数≤1.72dB,输入、输出电压驻波<2:1;带内最小噪声系数为1.61dB,相关增益为26.3dB.测量结果与设计符合得较好.
参考文献
[1] | Choi B G;Lee Y S;Yoon K S.Low noise PHEMT and its MMIC implementation for C-band applications[A].,2000:56. |
[2] | Vijay Nair.Low current enhancement mode MMICs for portable communication applications[A].,1989:67. |
[3] | Urs Lott.Low DC power monolithic low noise amplifier for wireless applications at 5 GHz[A].,1996:81. |
[4] | Frank Ellinger;Urs Lott;Werner Bachtold.Ultra low power GaAs MMIC low noise amplifier for smart antenna combining at 5.2GHz[A].,2000:157. |
[5] | Scherrer D;Apostolakis P J;Middleton J.Optimal noise matching of 0.25 micron gate GaAs MESFETs for low power personal communications receiver circuit designs[A].,1994:1439. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分:
-
10%
-
20%
-
30%
-
40%
-
50%