microstrip circular slot antenna;
Large bandwidth;
feedline;
D O I:
10.1002/mop.10306
中图分类号:
TM [电工技术];
TN [电子技术、通信技术];
学科分类号:
0808 ;
0809 ;
摘要:
A large-band rectangular-shaped microstrip-fed circular slot antenna is studied in this Letter. In this case, many design parameters of this antenna lead to good impedance matching in a wide frequency bond Although the use of a high-relative-permittivity (epsilon(r) = 4.3) substrate usually restricts the operation bandwidth, the measured bandwidth is from 2.277 to 9.272 GHz, which is approximately 124.6 % (VSWR less than or equal to 2.0). The experimented data for the impedance loci and the radiation patterns of the antenna are also described. (C) 2002 Wiley Periodicals, Inc.