By Topic

A multi-mode 60-GHz power amplifier with a novel power combination technique

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

3 Author(s)
Jin-Fu Yeh ; Dept. of Electr. Eng., Nat. Taiwan Univ., Taipei, Taiwan ; Jeng-Han Tsai ; Tian-Wei Huang

This paper discusses two issues including a new power-combined technique and efficiency enhancement technique in mm-wave power amplifier design. A new concept of “folded-transformer” is proposed to reduce effectively the active area of power combiner and splitter. Furthermore, the efficiency enhancement technique at power-back operations is presented to extend the battery service time of the mobile device. The 60-GHz PA adopts an ultra-compact 4-way folded-transformer based architecture and provides power level-dependent multi-operating modes. To the best of the author's knowledge, this is the first mm-wave power amplifier with efficiency enhancement technique at power back-off operations. The PA is implemented in TSMC 90nm low-power CMOS process. While 1.2 V supply, the measurement results show that the peak power is 18.5 dBm at 60GHz and the drain efficiency of the power stage achieves of 24.1%. At 6dB/10dB power back-off operation, the drain efficiencies of power stage can be enhanced from 5.9% / 2.4% to 11.9% / 8%, respectively.

Published in:

Radio Frequency Integrated Circuits Symposium (RFIC), 2012 IEEE

Date of Conference:

17-19 June 2012