Title :
Mutual coupling reduction of low-profile monopole antennas on high-impedance ground plane
Author :
Xin, H. ; Matsugatani, K. ; Kim, M. ; Hacker, J. ; Higgins, J.A. ; Rosker, M. ; Tanaka, M.
Author_Institution :
Rockwell Sci. Co., Thousand Oaks, CA, USA
fDate :
8/1/2002 12:00:00 AM
Abstract :
The mutual coupling effects of flush-mounted (horizontal) monopole antennas on high-impedance ground planes (HIP) have been measured. Experiments of horizontal monopoles on HIP with a bandgap centred at 4.7 GHz show that the interference between two adjacent elements is stronger compared to those on a regular metal ground plane due to special properties of HIP. A technique using a combination of HIP and thin metal strip is proven to reduce the mutual coupling by ~6 dB. Similar results have been obtained for the horizontal monopoles on HIP with a bandgap centre at 17 GHz
Keywords :
antenna earths; electric impedance; electromagnetic coupling; microwave antennas; monopole antennas; 17 GHz; 4.7 GHz; Rush-mounted monopole antennas; SHF; bandgap; high-impedance ground plane; horizontal monopoles; interference; low-profile monopole antennas; metal ground plane; mutual coupling reduction; thin metal strip;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20020575
