A C-band microwave rectifier without capacitors for microwave power transmission. Issue 6 (14th July 2014)

• Record Type: Journal Article
• Authors: Zhang, Biao; Jiang, Wan; Yu, Chengyang; Liu, Changjun
• Is Part Of: International journal of microwave and wireless technologies. Volume 7:Issue 6(2015)
• Page Start: 623
• Page End: 628
• Publication Date: 2014-07-14
• Subjects: Microwave rectifier, -- Low-pass filter, -- Impedance matching; Wireless communication systems -- Periodicals; Microwave circuits -- Periodicals; Radio frequency -- Periodicals; 621.381305
• DOI: 10.1017/S1759078714000889
• Languages: English
• ISSNs: 1759-0787

Abstract

Abstract : A microwave rectifier at 5.8 GHz without any capacitors is presented, which owns a measured MW-to-DC conversion efficiency of 68.1%. A harmonic rejection filter and a DC pass filter, which replace lumped capacitors in conventional microwave rectifiers, are applied to suppressing the harmonics produced by an HSMS-286 Schottky diode during rectifying. At the fundamental frequency, a microstrip impedance transformer which contains a shunt λg/8 short-ended microstrip transmission line and two short series microstrip transmission lines are applied to compensating the imaginary impedance of the diode and matching the input impedance of the rectifier. The measured MW-to-DC conversion efficiency agrees well to the simulated results. The novel rectifier without any lumped passive elements may be applied for power transmission system at higher microwave frequencies.