A sub-6 GHz and millimeter-wave IPD tri-band bandpass filter chip with wide stopband, high roll-off, and enhanced bandwidth

IF 1.9 3区工程技术 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC

Microelectronics Journal Pub Date : 2025-02-01 DOI:10.1016/j.mejo.2024.106527

Yuxin Liu , Yongle Wu , Shuchen Zhen , Yuhao Yang , Weimin Wang , Qinghua Yang

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引用次数: 0

Abstract

In this paper, a sub-6 GHz and millimeter-wave tri-band bandpass filter (T-BPF) is proposed. The first passband is at FR1 (450 MHz-6.0 GHz), and the other two are at FR2 (24.25 GHz–52.6 GHz), respectively. The high-frequency part is a stepped-impedance coupled-line dual-band filter. The low-frequency part is a low-order filter with single transmission zero (TZ), showing poor roll-off on the side without a TZ. However, under the influence of the high-frequency part, it generates an extra TZ on the left side of the low-frequency passband, improving the passband's roll-off. For demonstration, based on GaAs integrated passive device (IPD) technology, a T-BPF operating at 4.3/24.7/39.4 GHz is designed, fabricated, and measured. The size of the T-BPF is only 1.64 mm ∗ 1.61 mm. The measured results show that the filter realizes insertion losses (ILs) of 1.29/2.67/1.77 dB, return losses (RLs) of 24/21/20 dB at center frequencies, good roll-off, and wide stopband from 6.3 (28.1) GHz to 22.4 (35.2) GHz.

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来源期刊

Microelectronics Journal 工程技术-工程：电子与电气

CiteScore

4.00

自引率

27.30%

发文量

222

审稿时长

43 days

期刊介绍： Published since 1969, the Microelectronics Journal is an international forum for the dissemination of research and applications of microelectronic systems, circuits, and emerging technologies. Papers published in the Microelectronics Journal have undergone peer review to ensure originality, relevance, and timeliness. The journal thus provides a worldwide, regular, and comprehensive update on microelectronic circuits and systems. The Microelectronics Journal invites papers describing significant research and applications in all of the areas listed below. Comprehensive review/survey papers covering recent developments will also be considered. The Microelectronics Journal covers circuits and systems. This topic includes but is not limited to: Analog, digital, mixed, and RF circuits and related design methodologies; Logic, architectural, and system level synthesis; Testing, design for testability, built-in self-test; Area, power, and thermal analysis and design; Mixed-domain simulation and design; Embedded systems; Non-von Neumann computing and related technologies and circuits; Design and test of high complexity systems integration; SoC, NoC, SIP, and NIP design and test; 3-D integration design and analysis; Emerging device technologies and circuits, such as FinFETs, SETs, spintronics, SFQ, MTJ, etc. Application aspects such as signal and image processing including circuits for cryptography, sensors, and actuators including sensor networks, reliability and quality issues, and economic models are also welcome.