Scheduled System Maintenance:
Some services will be unavailable Sunday, March 29th through Monday, March 30th. We apologize for the inconvenience.
By Topic

General synthesis method for symmetrical even-order Chebyshev bandpass filter

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

The purchase and pricing options are temporarily unavailable. Please try again later.
2 Author(s)
Songbai Zhang ; Electr. & Electron. Eng., Nanyang Technol. Univ., Singapore, Singapore ; Lei Zhu

This paper proposes a general synthesis method for the even-order Chebyshev bandpass filter with equal I/O port impedances. It is prevalently accepted that the even-order Chebyshev filter has unequal I/O terminations due to impedance mismatch at D.C. in its lowpass prototype. In this paper, two symmetrical properties are firstly found among the elements of even-order Chebyshev lowpass ladder network. A symmetrical even-order Chebyshev lowpass network with equal terminations are then proposed based on both properties, which tackles the impedance mismatch with the inverters rather than the load conductance/resistance. Subsequently, a 4th-order Chebyshev bandpass filter based on λ/2 microstrip-line resonators centering at 2.4 GHz with a fractional bandwidth of 10.0% are synthesized and fabricated, the measured results provide strong verification for the proposed synthesis method.

Published in:

Microwave Conference Proceedings (APMC), 2012 Asia-Pacific

Date of Conference:

4-7 Dec. 2012