Abstract
The designs of dual-band and wide-band microstrip patch antennas with conical radiation patterns are presented in this paper. The antenna is composed of a square-ring patch that is shorted to the ground plane through four shorting walls. Three resonant modes with conical radiation patterns can be simultaneously excited in the antenna structure by a patch-loaded coaxial probe inside the square-ring patch, and they can be designed as a dual-band operation. Moreover, by adjusting the width of the shorting walls, the three modes can be coupled together to realize a wide-band operation. From the obtained results, the 10 dB impedance bandwidths at lower and higher operating frequencies are respectively 42 and 8% for the dual-band antenna design, and the wide-band design exhibits an impedance bandwidth of about 70%.
Original language | English |
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Pages (from-to) | 900-903 |
Number of pages | 4 |
Journal | IEEE Transactions on Antennas and Propagation |
Volume | 56 |
Issue number | 3 |
DOIs | |
Publication status | Published - 2008 Mar 1 |
All Science Journal Classification (ASJC) codes
- Electrical and Electronic Engineering