Miniaturized CBCPW bandpass filter based on thin film polyimide on lossy silicon

Sang No Lee; Jong Gwan Yook

doi:10.1109/LMWC.2006.882396

Miniaturized CBCPW bandpass filter based on thin film polyimide on lossy silicon

Sang No Lee, Jong Gwan Yook

Department of Electrical and Electronic Engineering

Research output: Contribution to journal › Article › peer-review

4 Citations (Scopus)

Abstract

This letter reports a miniaturized conductor-backed coplanar waveguide (CBCPW) bandpass filter (BPF) based on a thin film polyimide layer coated on a lossy silicon. With a 20-μm-thick polyimide interface layer and back metallization, the interaction of electromagnetic fields with the lossy silicon substrate has been isolated, and as a result low-loss and low-dispersive CBCPW line has been obtained. The measured attenuation at 20 GHz is below 1.2 dB/cm, which is comparable with the CPW fabricated on GaAs. In addition, by using the proposed CBCPW geometry, a miniaturized Ku-band BPF was designed and its measured frequency response demonstrated excellent correlation with the predicted value which validated the performance of the proposed CBCPW geometry used for radio frequency integrated circuit interconnects and filter applications.

Original language	English
Pages (from-to)	546-548
Number of pages	3
Journal	IEEE Microwave and Wireless Components Letters
Volume	16
Issue number	10
DOIs	https://doi.org/10.1109/LMWC.2006.882396
Publication status	Published - 2006 Oct

All Science Journal Classification (ASJC) codes

Condensed Matter Physics
Electrical and Electronic Engineering

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10.1109/LMWC.2006.882396

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abstract = "This letter reports a miniaturized conductor-backed coplanar waveguide (CBCPW) bandpass filter (BPF) based on a thin film polyimide layer coated on a lossy silicon. With a 20-μm-thick polyimide interface layer and back metallization, the interaction of electromagnetic fields with the lossy silicon substrate has been isolated, and as a result low-loss and low-dispersive CBCPW line has been obtained. The measured attenuation at 20 GHz is below 1.2 dB/cm, which is comparable with the CPW fabricated on GaAs. In addition, by using the proposed CBCPW geometry, a miniaturized Ku-band BPF was designed and its measured frequency response demonstrated excellent correlation with the predicted value which validated the performance of the proposed CBCPW geometry used for radio frequency integrated circuit interconnects and filter applications.",

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AB - This letter reports a miniaturized conductor-backed coplanar waveguide (CBCPW) bandpass filter (BPF) based on a thin film polyimide layer coated on a lossy silicon. With a 20-μm-thick polyimide interface layer and back metallization, the interaction of electromagnetic fields with the lossy silicon substrate has been isolated, and as a result low-loss and low-dispersive CBCPW line has been obtained. The measured attenuation at 20 GHz is below 1.2 dB/cm, which is comparable with the CPW fabricated on GaAs. In addition, by using the proposed CBCPW geometry, a miniaturized Ku-band BPF was designed and its measured frequency response demonstrated excellent correlation with the predicted value which validated the performance of the proposed CBCPW geometry used for radio frequency integrated circuit interconnects and filter applications.

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Miniaturized CBCPW bandpass filter based on thin film polyimide on lossy silicon

Abstract

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