论文信息 - Miniaturized bandpass substrate integrated waveguide filter with frequency‐dependent coupling realized using asymmetric GCPW discontinuity

Miniaturized bandpass substrate integrated waveguide filter with frequency‐dependent coupling realized using asymmetric GCPW discontinuity

An asymmetric GCPW discontinuity is proposed to provide frequency-dependent coupling in microwave bandpass filters. Wider and narrow sections introduce, respectively, the capacitive and inductive component to the equivalent circuit representing coupling. By selecting the dimensions of the discontinuity and width of the inductive window in substrate integrated waveguide, an additional transmission zero can be introduced at prescribed positions. A distinct feature of the proposed structure is a small footprint and low loss. As an example, a bandpass filter with a central frequency of 4.6 GHz and a 200 MHz passband is designed, and its performance is measured. © 2015 Wiley Periodicals, Inc. Microwave Opt Technol Lett 57:1818–1821, 2015

Lukasz Szydlowski | Michal Mrozowski | Andrzej Jedrzejewski

[1] Lukasz Szydlowski,et al. A Linear Phase Filter in Quadruplet Topology With Frequency-Dependent Couplings , 2014, IEEE Microwave and Wireless Components Letters.

[2] Lukasz Szydlowski,et al. ZERO-POLE APPROACH TO COMPUTER AIDED DESIGN OF IN-LINE SIW FILTERS WITH TRANSMISSION ZEROS , 2012 .

[3] W. Yin,et al. Novel Substrate Integrated Waveguide Filters With Mixed Cross Coupling (MCC) , 2009, IEEE Microwave and Wireless Components Letters.

[4] A. Lamecki,et al. A Substrate Integrated Waveguide (SIW) Bandpass Filter in A Box Configuration With Frequency-Dependent Coupling , 2012, IEEE Microwave and Wireless Components Letters.

[5] Ke Wu,et al. Review of substrate-integrated waveguide circuits and antennas , 2011 .

[6] Ke Wu,et al. Accurate modeling, wave mechanisms, and design considerations of a substrate integrated waveguide , 2006, IEEE Transactions on Microwave Theory and Techniques.

[7] A. Lamecki,et al. Coupled-Resonator Filters With Frequency-Dependent Couplings: Coupling Matrix Synthesis , 2012, IEEE Microwave and Wireless Components Letters.

[8] Jens Bornemann,et al. Using frequency-dependent coupling to generate finite attenuation poles in direct-coupled resonator bandpass filters , 1999 .