NDLI: Compact on-chip millimetre wave bandpass filters with meandered grounding resonator in 0.13-μm (Bi)-CMOS technology

Content Provider	IET Digital Library
Author	Luo, Cong Wong, Sai Wai Chen, Rui Sen Zhu, Xi Yang, Yang Lin, Jing Yu Tu, Zhi Hong Xue, Quan
Abstract	In this study, an ultra-compact meandered grounding resonator is proposed to design two millimetre wave bandpass filters (BPFs) in a standard 0.13-µm silicon-germanium (Bi)-complementary metal oxide semiconductor (CMOS) technology. The fundamental second-order prototype, namely BPF-I, consists of a pair of proposed resonators and a pair of grounded metal-insulator-metal (MIM) capacitors. To better understand the principle of the second-order BPF-I, an equivalent LC-circuit model and theoretical analysis method are presented in this study. Based on BPF-I, the second-order BPF-II is proposed by adding the additional two pairs of MIM capacitors to improve the frequency selectivity, by means of introducing a transmission zero at lower stopband. Finally, both of the two second-order BPFs are fabricated. The measured results show a good agreement with the full-wave simulation results. The insertion loss of the first BPF-I is 1.79 dB at the centre frequency of 46.6 GHz, and the fractional bandwidth is up to 96.5%. The second BPF-II has a centre frequency at 46.8 GHz with a fractional bandwidth of 94.1%. The minimum insertion loss is 2.08 dB and the lower stopband attenuation is up to 42.7 dB. Moreover, the die sizes of the two compact BPFs, excluding the test pads, are only 0.0197 mm2 (0.104 × 0.190 mm2).
Starting Page	559
Ending Page	565
Page Count	7
ISSN	17518725
Volume Number	14
e-ISSN	17518733
Issue Number	Issue 6, May (2020)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-map/14/6
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-map.2019.0192
Journal	IET Microwaves, Antennas & Propagation
Publisher Date	2019-12-17
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Band-pass Filter BiCMOS Integrated Circuit Bipolar MIMIC Compact On-chip Millimetre Wave Bandpass Filter Equivalent LC-circuit Model Fractional Bandwidth Frequency 46.6 GHz Frequency 46.8 GHz Frequency Selectivity Ge-Si Alloy Grounded Metal-insulator-metal Capacitor Microwave IC Millimetre Wave Filter MIM Capacitor Mixed Technology Integrated Circuit Passive Filter Passive Network Second-order BPF-II SiGe Silicon-germanium-BiCMOS Technology Size 0.104 Mm Size 0.13 Mum Size 0.190 Mm Stopband Attenuation Transmission Zero Ultra-compact Meandered Grounding Resonator Waveguide And Microwave Transmission Line Component
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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