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Microstrip‐line‐fed compact broadband circular microstrip antenna with chip‐resistor loading
Author(s) -
Wong KinLu,
Lin YiFang
Publication year - 1998
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/(sici)1098-2760(199801)17:1<53::aid-mop14>3.0.co;2-c
Subject(s) - microstrip antenna , microstrip , patch antenna , broadband , bandwidth (computing) , resistor , feed line , electronic engineering , acoustics , engineering , electrical engineering , antenna (radio) , telecommunications , physics , voltage
Direct matching of a reduced‐size, broadband circular microstrip antenna with a 50 Ω microstrip‐line feed is described. This design is achieved simply by loading a 1 Ω chip resistor near the edge of the circular patch, which significantly reduces the resonant frequency of the microstrip patch, broadens the operating bandwidth, and causes a wide variation in the input impedance along the patch edge. The last behavior makes direct matching of the antenna with a 50 Ω microstrip line possible. Several typical designs are presented. © 1998 John Wiley & Sons, Inc. Microwave Opt Technol Lett 17: 53–55, 1998.