Ru Yuan Yang, Min Hung Weng, Hung Wei Wu, Tsung Hui Huang, Wu Nan Chen, Mau Phon Houng


A uniplanar bandpass Filter is proposed and implemented by coupling the two open ended 50-Ω microstrip line with the periodic cross shaped cells (PCSCs). The passband characteristics are excited by using PCSCs, and the filter frequency response related to coupling gap and rows of the PCSCs are discussed. The bandpass filter demonstrates the frequency characteristics with a center frequency fo = 2.16 GHz, a 3-dB bandwidth (FBW) of 23 %, and insertion loss S21 of -1.8 dB. There is a good agreement between the experimental and simulation results.

Full Text:



Y. Qian, V. Radisic, and T. Itoh, Simulation and experiment of photonic bandgap structures for microstrip circuits, in APMC'97 Proc., Hong Kong, pp. 585-588, Dec. 1997.

R. Ian, P. M. Melinda, and P. Keith Kelly, Photonic Bandgap Structures Used as Filters in Microstrip Circuit, IEEE Microwave and Guided Wave Lett 8 (1998), 336-338.

L. H. Hsieh and K. Chang, Slow-wave bandpass filter using ring or stepped-impedance hairpin resonators, IEEE Trans. Microwave Theory and Tech, MTT-50 (2002), 1795- 1800.

F. R. Yang, K. P. Ma, Y. Qian, and T. Itoh, A uniplanar compact photonic-bandgap (UCPBG) structure and its applications for microwave circuits, IEEE Trans. Microwave Theory and Tech, MTT-47 (1999), 1509-1514.

T. Y. Yun and K. Chang, Uniplanar one-dimensional photonic-bandgap structures and resonators, IEEE Trans. Microwave Theory and Tech, MTT-49 (2001), 549-553.

S. T. Chew, T. Itoh, PBG- excited split-mode resonator bandpass filter, IEEE Microwave and Wireless Components Lett 11 (2001), 364-366.

Zeland Software, Inc., IE3D Simulator, Jan. 1997.


  • There are currently no refbacks.

© Copyright 2007-2016 JMOe Brazilian Microwave and Optoelectronics Society (SBMO) and Brazilian Society of Electromagnetism (SBMag)