Air-filled cavity-backed 28 GHz Antenna array implemented by 2.5D PCB process and Network Analysis

H. Takahashi, S. W. Sattler, E. Schlaffer, B. Reitmaier, H. Sarbandifarahani, H. Paulitsch, W. Bösch

Publikation: Beitrag in Buch/Bericht/KonferenzbandBeitrag in einem KonferenzbandBegutachtung

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 $0.035\lambda_{0}$ and the separation of $0.8\lambda_{0}$ 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.
Originalspracheenglisch
Titel2021 51st European Microwave Conference (EuMC)
Herausgeber (Verlag)IEEE Xplore
Seiten534-537
Seitenumfang4
ISBN (Print)978-1-6654-4721-8
DOIs
PublikationsstatusVeröffentlicht - 6 Apr. 2022
Veranstaltung51st European Microwave Conference: EuMC 2021 - London, Großbritannien / Vereinigtes Königreich
Dauer: 4 Apr. 20226 Apr. 2022
https://www.eumw2021.com/

Konferenz

Konferenz51st European Microwave Conference
KurztitelEuMC 2021
Land/GebietGroßbritannien / Vereinigtes Königreich
OrtLondon
Zeitraum4/04/226/04/22
Internetadresse

Schlagwörter

  • Antenna measurements
  • Microstrip antenna arrays
  • Analytical models
  • Network analyzers
  • Microstrip antennas
  • Bandwidth
  • Transmission line measurements

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