Journal
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS
Volume 19, Issue 1, Pages 39-43Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LAWP.2019.2952260
Keywords
Antenna radiation patterns; Microstrip; Microstrip antennas; Current distribution; Mathematical model; Substrates; Patch antennas; High directivity; high-order TM modes; microstrip antennas; TM modes
Ask authors/readers for more resources
High-directivity microstrip antennas are attractive for the line-of-sight communications due to their thin profile. In order to achieve a high-directive radiation pattern, the geometry of a patch operating at a TModd-0 mode is modified to minimize the effect of out-of-phase currents. Two high-directivity microstrip patch antennas operating at modified TM 30 and TM 50 modes are presented. They exhibit broadside radiation patterns with directivities of 15 and 18 dBi, respectively. The advantage of the proposed technique compared to an antenna array is that no feeding network is required, and thus, the design is simpler and avoids the losses caused by the feeding network. A prototype to validate the proposed technique is built, achieving a measured directivity of 14.6 dBi. The microstrip patch antenna has a total size of 3(lambda/2) x 3(lambda/2), and its measured bandwidth is four times that of an equivalent array of microstrip patches operating in its fundamental mode.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available