A Broadband LTCC-Based Cavity-Backed Patch Phased Array Antenna for Ka-Band Applications

IF 1.1 4区计算机科学 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC

Iet Microwaves Antennas & Propagation Pub Date : 2025-03-17 DOI:10.1049/mia2.70004

Maryam Sadeghi, Mohammad S. Sharawi, Dawood S. Beyragh, Ammar B. Kouki, Mohamed Helaoui, Noureddine Outaleb, Wenhua Chen, Fadhel M. Ghannouchi

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Abstract

This paper presents a 4 $\times$ 4 millimeter-wave (mm-wave) phased array antenna operating in the Ka-band (27–34 GHz) fabricated using low-temperature co-fired ceramic (LTCC) technology. The proposed array employs several innovative design features to achieve superior performance. An oversized aperture, combined with a parasitic patch and an embedded air cavity, significantly enhances the gain and bandwidth. Additionally, an asymmetric stripline feed structure minimises back radiation and facilitates multi-layer integration, enabling seamless compatibility with beamforming systems. The antenna demonstrates a measured impedance bandwidth of 27% and a realised gain of 17.5 dBi at 29 GHz, with a scanning angle of $\pm 25 °$ . These results establish the design as a compact, high-efficiency, and broadband solution for mm-wave phased array applications in 5G and beyond. Experimental validation using a 16-channel beamformer module further highlights the practicality of the design for real-world deployment.

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来源期刊

Iet Microwaves Antennas & Propagation 工程技术-电信学

CiteScore

4.30

自引率

5.90%

发文量

109

审稿时长

7 months

期刊介绍： Topics include, but are not limited to: Microwave circuits including RF, microwave and millimetre-wave amplifiers, oscillators, switches, mixers and other components implemented in monolithic, hybrid, multi-chip module and other technologies. Papers on passive components may describe transmission-line and waveguide components, including filters, multiplexers, resonators, ferrite and garnet devices. For applications, papers can describe microwave sub-systems for use in communications, radar, aerospace, instrumentation, industrial and medical applications. Microwave linear and non-linear measurement techniques. Antenna topics including designed and prototyped antennas for operation at all frequencies; multiband antennas, antenna measurement techniques and systems, antenna analysis and design, aperture antenna arrays, adaptive antennas, printed and wire antennas, microstrip, reconfigurable, conformal and integrated antennas. Computational electromagnetics and synthesis of antenna structures including phased arrays and antenna design algorithms. Radiowave propagation at all frequencies and environments. Current Special Issue. Call for papers: Metrology for 5G Technologies - https://digital-library.theiet.org/files/IET_MAP_CFP_M5GT_SI2.pdf