A Broadband Rx Band Noise Reduction Circuit with CMOS Switch for Multi-Band Power Amplifier

被引：0

作者：

Kawamura, Yoshifumi ^{[1
]}

Shinjo, Shintaro ^{[1
]}

Iyomasa, Kazuhiro ^{[1
]}

Hirobe, Masakazu ^{[1
]}

Kato, Katsuya ^{[1
]}

Takahashi, Yoshinori ^{[1
]}

Yamabe, Shigeo ^{[1
]}

Horiguchi, Kenichi ^{[1
]}

Hieda, Morishige ^{[1
]}

Yamanaka, Koji ^{[1
]}

机构：

[1] Mitsubishi Electr Corp, Sagamihara, Kanagawa 2478501, Japan

来源：

2015 IEEE RADIO AND WIRELESS SYMPOSIUM (RWS) | 2015年

关键词：

Rx band noise; noise reduction circuit; LC resonator; power amplifier; frequency division duplex;

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A broadband Rx band noise reduction circuit for multi-band power amplifiers (PA) is presented. The proposed Rx band noise reduction circuit consists of a Single-Pole Double-Throw (SPDT) switch and an LC resonator with resonant frequency is at the difference frequency between transmit and receive bands. By controlling the connection path of the LC resonator with the SPDT switch, the proposed Rx band noise reduction circuit achieves broadband Rx band noise suppression. In this paper, to clarify the impact of the proposed circuit, the proposed circuit is applied to a multi-band PA. As a result, the proposed Rx noise reduction circuit offers broadband out-of-band noise suppression and improved Rx noise power. In addition, the PA achieves more than 28.5 dBm of output power with power added efficiency (PAE) as high as 37% with a corresponding Rx-noise power of -136.5 dBm/Hz.

引用

页码：165 / 167

页数：3