Directivity enhancement of circularly polarized microstrip antennas by chiral metamaterial covers. - Seyed Ehsan Hosseininejad; Nader Komjani; Davoud Zarifi; Mahdi Rajabi (IEICE Electron. Express, 2012)

Design and Fabrication of Wideband Millimeter-Wave Directional Couplers With Different Coupling Factors Based on Gap Waveguide Technology. - Davoud Zarifi; Ali Farahbakhsh; Ashraf Uz Zaman (IEEE Access, 2019)

A Wideband 3-dB Directional Coupler in GGW for Use in V-Band Communication Systems. - Marzieh Nasri; Davoud Zarifi; Ashtaf Uz Zaman (IEEE Access, 2020)

A 12-20 GHz Wideband High-Power SP2T Switch Based on Gap Waveguide Technology. - Abdullah J. Alazemi; Ali Farahbakhsh; Davoud Zarifi (Sensors, 2021)

Design of a Wideband Coaxial-to-Rectangular Waveguide Transition Based on Supershapes. - Pardis Enayati; Davoud Zarifi (IEEE Access, 2022)

A Wideband Gap Waveguide-Fed 16-Element Circularly Polarized Patch Antenna Array. - Abdullah J. Alazemi; Ali Farahbakhsh; Davoud Zarifi (IEEE Access, 2023)

A Millimeter-Wave Six-Port Junction Based on Ridge Gap Waveguide. - Davoud Zarifi; Ali Farahbakhsh; Ashraf Uz Zaman (IEEE Access, 2023)

Millimeter Wave Wideband and Low-Loss Compact Power Divider Based on Gap Waveguide: For Use in Wideband Antenna Array System. - Arefeh Kalantari Khandani; Ali Farahbakhsh; Davoud Zarifi; Ashraf Uz Zaman (IEEE Access, 2024)

Design of Compact and Wideband Groove Gap Waveguide-Based Directional Couplers. - Mahdieh Rabbanifard; Davoud Zarifi; Ali Farahbakhsh; Michal Mrozowski (IEEE Access, 2024)

Improved Bandwidth of Microstrip Wide-Slot Antenna Using Gielis Curves. - Davoud Zarifi; Ali Farahbakhsh; Michal Mrozowski (IEEE Access, 2024)