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Abstract
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Article Information:
Design of Compact UWB Bandpass Filter with Improved Out-of-band Performance Using Distributed CRLH Transmission Lines
Gyuje Sung
Corresponding Author: Gyuje Sung
Submitted: December 29, 2014
Accepted: February 5, 2015
Published: May 30, 2015 |
Abstract:
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This study presents an Ultra-Wideband (UWB) filter with improved out-of-band performance. The proposed filter adopts novel Composite Right/Left-Handed (CRLH) Transmission Lines (TLs), which are modeled with distributed elements instead of lumped elements. A unit cell of the CRLH TLs is theoretically analyzed to derive the design formulas. The analyzing results confirm that the proposed structures are CRLH TLs. A novel UWB bandpass filter with improved out-of-band performance is designed and fabricated using the induced formulas. The measurement results show that the fabricated UWB bandpass filter has an insertion loss of less than 2.8 dB, a bandwidth of 2.8-10.4 GHz and a rejection of more than 18 dB from 11.6 to 23.4 GHz.
Key words: Bandpass Filter (BPF), composite right/left-handed (CRLH) transmission line, group delay, ultra-wideband (UWB), , ,
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Cite this Reference:
Gyuje Sung, . Design of Compact UWB Bandpass Filter with Improved Out-of-band Performance Using Distributed CRLH Transmission Lines. Research Journal of Applied Sciences, Engineering and Technology, (3): 338-343.
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ISSN (Online): 2040-7467
ISSN (Print): 2040-7459 |
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