Institute of Electrical and Electronics Engineers Inc.;New York: IEEE
摘要:
摘要： This paper presents a new type of absorptive bandstop filter (ABSF) design that is targeted for absorbing the local-oscillator-to-RF leakage of mixer in a heterodyne receiver. The proposed ABSF is designed to absorb the input power at its Port 1, and it is achieved by introducing one lossy resonator to a conventional narrowband coupled-line bandstop filter. Suitable equivalent circuit models and closed-form design equations are established to enable the direct synthesis of proposed ABSFs. Specifically, a proposed microstrip ABSF with a stopband center frequency f 0 of 2 GHz is demonstrated. The maximal stopband rejection is 34.8 dB with an input return loss of 27.7 dB, which implies that 99.8% of the input power is dissipated by the proposed ABSF. 其他題名： TMTT 出版者： New York: IEEE 出版日期： 2015-10-01 出處： IEEE transactions on microwave theory and techniques, 2015-10, Vol.63 (10), p.3469-3478 資源來源： IEEE Electronic Library (IEL) 版權： Copyright The Institute of Electrical and Electronics Engineers, Inc. (IEEE) Oct 2015 識別號： ISSN: 0018-9480 識別號： EISSN: 1557-9670 識別號： DOI: 10.1109/TMTT.2015.2460752 識別號： CODEN: IETMAB
