Abstract
In this paper, we present the design, simulation, fabrication, and measurements of an on-chip dielectric resonator (DR)-fed millimeter-wave high-gain antenna system with in-antenna power combining capability. A low-profile resonant cavity antenna is fed by four spherical DR, showcasing the antenna’s multi-feed capabilities. Each DR is fed by two microstrip resonators located diagonally opposite on a planar circuit board and are excited via coaxial connectors. The design incorporates a printed partially reflecting superstrate, reducing the antenna’s overall size and profile while simultaneously enhancing directivity by approximately 10 dB at the design frequency of 30 GHz. The antenna exhibits wideband matching. Key performance metrics, such as directivity, gain, beamwidth, and bandwidth, predicted by full-wave electromagnetic simulations align well with the results from experimental measurements.
| Original language | English |
|---|---|
| Pages (from-to) | 838-849 |
| Number of pages | 12 |
| Journal | International Journal of Microwave and Wireless Technologies |
| Volume | 17 |
| Issue number | 5 |
| Early online date | Apr 2025 |
| DOIs | |
| Publication status | Published - Jun 2025 |
| Event | 18th European Conference on Antennas and Propagation, EuCAP 2024 - Glasgow, United Kingdom Duration: 17 Mar 2024 → 22 Mar 2024 |
Bibliographical note
Copyright the Author(s) 2025. Version archived for private and non-commercial use with the permission of the author/s and according to publisher conditions. For further rights please contact the publisher.Keywords
- high-power antenna
- diectric resonators
- high-gain
- in-antenna power combination
- mm-wave
- multi-feed
- partially reflecting superstrate
- resonant cavity antenna
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