Abstract
A 28 GHz air-filled cavity-backed microstrip antenna array, which is embedded in a polyphenyl ethers (PPE)-based multilayer printed circuit board (PCB), is presented. The air cavity is implemented by a novel 2.5D PCB process with a no-flow prepreg, to improve radiation efficiency, bandwidth, and directivity while maintaining a low profile. A four-element antenna array was designed, simulated, and measured. The measurement results yield a bandwidth of 3.8% centered at 28.5 GHz and a realized gain of 14.8 dBi with the antenna substrate thickness of 0.035λ0 and the separation of 0.8λ0 between elements. Network analysis for a single patch section of the designed antenna with transmission line (TL) models is discussed as well. The comparison between the analyzed, simulated, and measured input impedance shows a good agreement over the given frequency band.
| Original language | English |
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| Title of host publication | 2021 51st European Microwave Conference (EuMC) |
| Publisher | IEEE Xplore |
| Pages | 534-537 |
| Number of pages | 4 |
| ISBN (Print) | 978-1-6654-4721-8 |
| DOIs | |
| Publication status | Published - 6 Apr 2022 |
| Event | 51st European Microwave Conference: EuMC 2021 - London, United Kingdom Duration: 4 Apr 2022 → 6 Apr 2022 https://www.eumw2021.com/ |
Conference
| Conference | 51st European Microwave Conference |
|---|---|
| Abbreviated title | EuMC 2021 |
| Country/Territory | United Kingdom |
| City | London |
| Period | 4/04/22 → 6/04/22 |
| Internet address |