Abstract
A low-cost high-gain circularly polarized antenna is proposed, the proposed antenna achieves a gain of 20 dBi and an axial ratio bandwidth of 6.5%. The proposed antenna is extremely low in cost as it uses printed ridge gap waveguide (PRGW) technology. The use of PRGW technology suppresses the parasitic and back-lobe radiation from the feed, which maintains neat radiation characteristics for the radiating antenna. The structure is made of a magnetoelectric (ME) dipole, which illuminates a set of adjacent dielectric slabs. The diffracted fields from the edges of the dielectric slabs add up constructively with the ME dipole radiated fields in the boresight and boost the gain of the ME dipole. Accordingly, the antenna structure relaxes the need for designing a feeding network by utilizing the diffracted fields from dielectric slabs edges. A 3-D-printed dielectric polarizer is used to further boost the gain and transform the polarization of the antenna to circular polarization. The antenna possesses a focused pencil-beam pattern that is well-suited for several millimeter-wave (mm-wave) applications.
| Original language | English |
|---|---|
| Pages (from-to) | 7644-7649 |
| Number of pages | 6 |
| Journal | IEEE Transactions on Antennas and Propagation |
| Volume | 71 |
| Issue number | 9 |
| DOIs | |
| State | Published - 1 Sep 2023 |
| Externally published | Yes |
Bibliographical note
Publisher Copyright:© 1963-2012 IEEE.
Keywords
- High gain
- low-cost antennas
- millimeter-wave (mm-wave) antennas
- printed circuit board antennas
ASJC Scopus subject areas
- Electrical and Electronic Engineering