Title :
A novel photonic bandgap structure for low-pass filter of wide stopband
Author :
Kim, Taesun ; Seo, Chulhun
Author_Institution :
Dept. of Inf. & Telecommun. Eng., Soongsil Univ., Seoul, South Korea
fDate :
1/1/2000 12:00:00 AM
Abstract :
In this letter, a novel photonic bandgap (PBG) structure is proposed for increasing the stopband of a low-pass filter without the increasing circuit size for applications in microstrip circuits. The proposed structure is connected in two parallel periodic structures which have a different center frequency of the stopband. The wide stopband is achieved by two periodic structures of two different stopbands. We also show the performance improvement of microstrip patch antenna by etching of the proposed structure in ground plane
Keywords :
etching; low-pass filters; microstrip antennas; microstrip circuits; periodic structures; photonic band gap; center frequency; circuit size; etching; ground plane; low-pass filter; microstrip circuits; microstrip patch antenna; parallel periodic structures; photonic bandgap structure; Circuits; Etching; Frequency; Lattices; Low pass filters; Microstrip antennas; Microstrip filters; Microwave filters; Periodic structures; Photonic band gap;
Journal_Title :
Microwave and Guided Wave Letters, IEEE
