Summary
Asia-Pacific Microwave Conference
2022
Session Number:TH2-F3
Session:
Number:TH2-F3-1
A 28 GHz Band Dual-Polarized LTCC Filtering Antenna with Extracted-Pole Unit
Kaoru Sudo, Ryo Mikase, Yoshinori Taguchi, Koichi Takizawa, Yosuke Sato, Kazushige Sato, Hisao Hayafuji, Masataka Ohira,
pp.306-308
Publication Date:2022/11/29
Online ISSN:2188-5079
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Summary:
This paper presents a 4-element (2×2) dual-polarized 28-GHz phased array antenna in package (AiP) for 5G communication. The AiP utilizes advanced fan-out wafer-level package (FOWLP) technology embedding a 65-nm CMOS beamformer IC and yields a low profile of 0.47 mm. Despite such an extremely low profile, a practical bandwidth of 2 GHz (27-29 GHz) is achieved by slot-fed antenna design. The antenna element on the AiP exhibits an EIRP of 15.2 dBm with good uniformity due to high fabrication accuracy of FOWLP. The AiPs are designed to be scalable so that they can be arranged in two dimensions to make a larger-scaled array. A 16-elements (2×8) phased array module using the four AiPs exhibits a peak EIRP of 40.5 dBm and is capable of scanning within ±40° close to ideal beam patterns, indicating high scalability of the developed FOWLP-based AiP.