A Low Distortion Radiation Pattern Ultra-Wideband TEM Horn Antenna
This paper introduces a low distortion radiation pattern ultra-wideband (UWB) transverse electromagnetic (TEM) horn antenna designed to operate in the 2 to 18 GHz frequency range. The modification is achieved using a non-uniform antenna feed without changing the antenna’s flare structure....
Saved in:
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
IEEE
2024-01-01
|
| Series: | IEEE Open Journal of Antennas and Propagation |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/10621048/ |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Summary: | This paper introduces a low distortion radiation pattern ultra-wideband (UWB) transverse electromagnetic (TEM) horn antenna designed to operate in the 2 to 18 GHz frequency range. The modification is achieved using a non-uniform antenna feed without changing the antenna’s flare structure. The main-lobe radiation pattern of the antenna at higher frequencies eliminates ripples by using a non-uniform feeding technique compared to conventional TEM horn antennas, in which this issue exists. The measurement results pursue simulation results with a good agreement. The maximum measurement ga in of the antenna is 15 dBi for the operating range, and a voltage standing ratio (VSWR) of 1:2 has been obtained in the whole frequency band. The final dimensions of the fabricated antenna with the feed section are defined as <inline-formula> <tex-math notation="LaTeX">$3.65\, \lambda _{0} \times 2\, \lambda _{0} \times 2\, \lambda _{0}$ </tex-math></inline-formula> compared to the previous studies, have smaller dimensions in terms of the free-space wavelength and low distortion, and no fluctuation in the main lobe in the H and E-plane of the radiation pattern between 2 to 18 GHz. The maximum measured ripple of the proposed TEM horn antenna at the main lobe is equal to 0.3 dB. These mentioned features of the proposed antenna are used as a part of ultra-wideband systems. |
|---|---|
| ISSN: | 2637-6431 |