A Bidirectional Absorptive Common-Mode Filter Based on Interdigitated Microstrip Coupled Lines for 5G “Green” Communications

Coupled-mode Analysis of Line Parameters of Coupled Microstrip Lines

Microstrip diplexer based on common dual-band filter

A novel microstrip diplexer with novel coupling structure is proposed in this letter. The proposed diplexer is designed with several stepped-impedance resonators. A dual-mode dual-band filter unit is used in this design to replace the conventional matching network, what is more, the dual-mode dual-band filter unit is resonance with other circuit resonator. The diplexer size can be reduced effic...

A Miniaturized Triple-Mode Microstrip Bandpass Filter

A Novel miniaturized triple-mode microstrip bandpass filter (BPF) using space mapping (SM) technique is presented in this paper. Three operating frequencies at 1.9 GHz, 2.14 GHz and 2.45 GHz are excited that are used for CDMA, WCDMA and RFID applications, respectively. In the proposed design, Substrate manufactured from RT_DURRIOD_5880 with dielectric constant of 2.21 and height of 20 mil that ...

Periodically Nonuniform Coupled Microstrip Lines with Equalized Even- and Odd-Mode Velocities for Harmonic Suppression in Filter Design

Periodically nonuniform coupled microstrip line (PNCML) loaded with transverse slits is characterized using the fullwave method of moments and short-open calibration technique. Guided-wave characteristics of both evenand odd-modes are thoroughly investigated in terms of two extracted per-unit-length transmission parameters, i.e., phase constants and characteristic impedances. As such, frequency...

Microstrip Cross-coupled Interdigital SIR Based Bandpass Filter

A simple and compact 4.9 GHz bandpass filter for C-band applications is proposed. This paper presents a novel microstrip cross-coupled interdigital half-wavelength stepped impedance resonator (SIR) based bandpass filter (BPF).The designed structure is similar to that of a combination of two parallel interdigital capacitors. The scattering parameters of the structure are measured using vector ne...