Title :
Design of 3dB wideband multisection quadrature directional coupler
Author :
Wei, Zhenghua ; Li, En ; Guo, Gaofeng ; Wu, Ju
Author_Institution :
Electron. Engneer Dept., Univ. of Electron. Scicence & Technol. of China, Chengdu, China
Abstract :
The paper present a three-section quadrature directional coupler which is bandwide coupled though a slot. In the middle region of the slot, a small ellipticall conducting disk is used to extend bandwidth and increase return loss and isolation. Result of simulation show that the coupler exhibits a coupling equal to 3.3dB±0.9dB accomanied by the return loss and isolation of more than 20dB across the band 2.5GHz-9.2GHz.
Keywords :
directional couplers; frequency 2.5 GHz to 9.2 GHz; small elliptical conducting disk; three-section quadrature directional coupler; wideband multisection quadrature directional coupler; Bandwidth; Couplings; Directional couplers; Microstrip; Microwave antennas; Microwave theory and techniques; ellipticall conducing disk; qurature directional couple; three-section;
Conference_Titel :
Consumer Electronics, Communications and Networks (CECNet), 2012 2nd International Conference on
Conference_Location :
Yichang
Print_ISBN :
978-1-4577-1414-6
DOI :
10.1109/CECNet.2012.6201704
