Title :
A Compact Ka-Band Planar Three-Way Power Divider
Author :
Lai, Yu-Ann ; Lin, Chi-Ming ; Chiu, Jui-Chieh ; Lin, Che-Hung ; Wang, Yeong-Her
Author_Institution :
Nat. Cheng-Kung Univ., Tainan
Abstract :
A Ka-band planar three-way power divider which uses the coupled line instead of the transmission line is proposed to reduce chip size. The proposed planar topology, different from the conventional Wilkinson power divider, is analyzed and can provide not only compact but also dc block characteristics, which are very suitable for monolithic microwave integrated circuit applications. The divider implemented by a pHEMT process shows an insertion loss less than 5.1 dB and an output isolation better than 17 dB. A return loss less than 18 dB and a phase difference of 4.2deg at 30 GHz can be achieved. Finally, good agreements between the simulation and experimental results are shown.
Keywords :
HEMT integrated circuits; field effect MMIC; power dividers; Ka-band planar three-way power divider; coupled line; frequency 30 GHz; high electron mobility transistors; insertion loss; monolithic microwave integrated circuit; pHEMT process; planar topology; return loss; Application specific integrated circuits; Circuit topology; Coupling circuits; Distributed parameter circuits; MMICs; Microwave integrated circuits; Monolithic integrated circuits; Planar transmission lines; Power dividers; Power transmission lines; Coupled line; Wilkinson power divider; planar; power divider; three-way power divider;
Journal_Title :
Microwave and Wireless Components Letters, IEEE
DOI :
10.1109/LMWC.2007.910476
