Ku‐band high power internally matched GaN HEMTs with 1.5 GHz bandwidth
Abstract
Purpose
The purpose of this paper is to report upon high power, internally matched GaN high electron mobility transistors (HEMTs) at Ku band with 1.5 GHz bandwidth, which employ a simple and cost‐effective lossless compensated matching technique.
Design/methodology/approach
Two 4 mm gate periphery GaN HEMTs are parallel combined and internally matched with multi‐section reactive impedance transformers at the input and output networks. The output matching network is designed at the upper frequency of the design band for a flat power of the circuit, while the input matching network is designed at the upper frequency for a flat gain.
Findings
With the reactively compensated matching technique, the internally matched GaN HEMTs exhibit a flat saturated output power of 43.2+0.7 dBm and an average power added efficiency of 15 per cent over 12 to 13.5 GHz.
Originality/value
This paper provides useful information for the internally matched GaN HEMTs.
Keywords
Citation
Ge, Q., Liu, X., Chen, X., Luo, W. and Liu, G. (2013), "Ku‐band high power internally matched GaN HEMTs with 1.5 GHz bandwidth", Microelectronics International, Vol. 30 No. 1, pp. 19-23. https://doi.org/10.1108/13565361311298196
Publisher
:Emerald Group Publishing Limited
Copyright © 2013, Emerald Group Publishing Limited