A 3.3 v self-biased 2.4-2.5GHz high linearity PHEMT MMIC power amplifier

Chen Kuo Chu, Hou Kuei Huang, Chih Cheng Wang, Yeong Her Wang, Chuan Chien Hsu, Wang Wu, Chang Luen Wu, Chian Sern Chang

Research output: Contribution to journalConference articlepeer-review

7 Citations (Scopus)


A 3.3V single voltage self-biased 2.4GHz-2.5GHz high linearity AlGaAs/InGaAs/GaAs PHEMT MMIC power amplifier for wireless local-area network (WLAN's) applications (dual channel for 802.11a/b combination systems)is demonstrated. This two-stage amplifier is designed to fully match for a 50 ohm input and output impedance. In this process, a backside via-ground method is not used, so it can offer very low cost for the production of wireless LAN IC. With only a 3.3V drain voltage, the amplifier has achieved 30dB small-signal gain, 23.5dBm 1 dB gain compression power with 24.2% power-added efficiency (PAE). In addition, high linearity with 37.2dBm third-order intercept point at frequency of 2.45GHz is achieved. For this power amplifier MMIC, the WLAN requirements of power amplifiers including aspects of high efficiency, high gain, high linearity and operation at 2.4GHz ISM band are procured.

Original languageEnglish
Article number1257223
Pages (from-to)667-670
Number of pages4
JournalEuropean Solid-State Circuits Conference
Publication statusPublished - 2003
Event29th European Solid-State Circuits Conference, ESSCIRC 2003 - Estoril, Portugal
Duration: 2003 Sept 162003 Sept 18

All Science Journal Classification (ASJC) codes

  • Hardware and Architecture
  • Electrical and Electronic Engineering


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