Linearization of CMOS triple cascode push-pull power amplifiers by second harmonic feedback

Kazuma Terajima, Kenichi Fujii, Takuji Sonoda, Tadashi Takagi, Eita Nakayama, Suguru Kameda, Noriharu Suematsu, Kazuo Tsubouchi

研究成果: Conference contribution

抄録

A linearity enhancement technique to a CMOS triple cascode push-pull power amplifier (PA) by second harmonic feedback has been proposed. The Second harmonic feedback is optimized to improve linearity based on the concept that the linearity is depend on the second harmonic feedback amplitude and phase. In order to feed second harmonics back to the push-pull PAs, we adopt a balun with a branching filter fabricated by using multi-layered organic substrates. The PA was fabricated in 0.18-μm CMOS process and was implemented on the balun by flip-chip connection. Because of the low breakdown voltage of CMOS power transistors, triple cascode configuration was adapted. It has been demonstrated that using second harmonic feedback, PAE and output power with a wideband code division multiple access (WCDMA) modulated signal are improved by 5.3% and 2.5dB respectively at adjacent channel leakage power ratio (ACLR) of -39dBc, and it has been demonstrated PAE of 28.8% and output power of 24.5dBm, respectively.

本文言語English
ホスト出版物のタイトル2014 Asia-Pacific Microwave Conference Proceedings, APMC 2014
出版社Institute of Electrical and Electronics Engineers Inc.
ページ107-109
ページ数3
ISBN(電子版)9784902339314
出版ステータスPublished - 2014 3 25
イベント2014 Asia-Pacific Microwave Conference, APMC 2014 - Sendai, Japan
継続期間: 2014 11 42014 11 7

出版物シリーズ

名前2014 Asia-Pacific Microwave Conference Proceedings, APMC 2014

Other

Other2014 Asia-Pacific Microwave Conference, APMC 2014
CountryJapan
CitySendai
Period14/11/414/11/7

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Hardware and Architecture
  • Electrical and Electronic Engineering

フィンガープリント 「Linearization of CMOS triple cascode push-pull power amplifiers by second harmonic feedback」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル