Abstract
A miniaturized broadband on-chip bandpass filter (BPF) is presented based on shunt dual-layer meander-line resonators and several metal-insulator-metal (MIM) capacitors. To understand the operational mechanism of the proposed BPF structure, it is analyzed using a simplified LC equivalent circuit model for further investigation of the transmission zeros (TZs) distributions. To validate the proposed idea, the BPF with three TZs is implemented in a commercial 0.13- \mu \text{m} SiGe (Bi)-CMOS process. The measured results show that the BPF has a center frequency at 18 GHz with a very broad bandwidth of 66.7%, and the minimum insertion loss within the passband is 2.9 dB. The chip, excluding the GSG pads, is about 0.318 mm \times0.392 mm.
Original language | English |
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Article number | 9208674 |
Pages (from-to) | 1617-1620 |
Number of pages | 4 |
Journal | IEEE Electron Device Letters |
Volume | 41 |
Issue number | 11 |
DOIs | |
Publication status | Published - 2020 Nov |
Keywords
- Bandpass filters
- broadband
- meander-line resonators
- on-chip devices
- SiGe-based circuits
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Electrical and Electronic Engineering