We analyze a loop antenna array proximity coupled to a coplanar feed line using the method of moments. First, a novel-loop array at a uniform proximity distance (PD) from the feedline is investigated versus loop height above the ground plane. It is found that when the loop height is λ/5 (λ: wavelength), a 3 dB axial-ratio bandwidth reaches 11%, which is 3.5 times as wide as that of a conventional-loop array. Subsequently, we transform the uniform PD into multiform PD's to enhance the gain of the novel-loop array. It is revealed that the array has a gain enhancement of 1.8 dB compared with that at a uniform PD and still shows an axial ratio bandwidth of 7%.
|Title of host publication||16th European Conference on Antennas and Propagation|
|Subtitle of host publication||EuCAP 2022|
|Number of pages||4|
|Publication status||Published - 2022 Mar 31|
|Event||16th European Conference on Antennas and Propagation: EuCAP 2022 - Madrid, Spain, Madrid, Spain|
Duration: 2022 Mar 27 → 2022 Apr 1
|Conference||16th European Conference on Antennas and Propagation|
|Period||22/3/27 → 22/4/1|
- Array antenna, wideband antenna, circular polarization, gain enhancement.
ASJC Scopus subject areas
- Electrical and Electronic Engineering