journal article·2025-08-14Open access

A High-Performance Ka-Band Cylindrical Conformal Transceiver Phased Array with Full-Azimuth Scanning Capability

Weiwei Liu, Shiqiao Zhang, Anxue Zhang, Wenchao Chen

Applied Sciences· Volume 15· Issue 16

Abstract

This paper presents a Ka-band cylindrical conformal transceiver active phased array (CCTAPA) with a full-azimuth scanning gain fluctuation of 0.8 dB and low power consumption. The array comprises 20 panels of 4 × 4 antenna elements, RF beam-control circuits, a Wilkinson power divider network, and frequency converters. The proposed three-subarray architecture enables ±9° beam scanning with minimal gain degradation. By dynamically switching subarrays and transceiver channels across azimuthal directions, the array achieves full 360° coverage with low gain fluctuation and power consumption. Fabrication and testing demonstrate a gain fluctuation of 0.8 dB, equivalent isotropically radiated power (EIRP) between 50.6 and 51.3 dBm, and a gain-to-noise-temperature ratio (G/T) ranging from −8 dB/K to −8.5 dB/K at 28.5 GHz. The RF power consumption remains below 8.73 W during full-azimuth scanning. This design is particularly suitable for airborne platforms requiring full-azimuth coverage with stringent power budgets.
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Research context

OpenAlex topics: Antenna Design and Analysis · Antenna Design and Optimization · Microwave Engineering and Waveguides

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

The School of Electronic and Information Engineering, Xi’an Jiaotong University, Xi’an 710049, China

The Key Laboratory of All Optical Network and Advanced Telecommunication Network of Ministry of Education, Institute of Lightwave Technology, Beijing Jiaotong University, Beijing 100044, China

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