Theoretical and experimental investigation of a rectenna element for microwave power transmission

A method has been devised to experimentally characterize a packaged GaAs Schottky barrier diode by inserting it into a microstrip test mount. The nonlinear equivalent circuit parameters of the diode are determined by a small-signal test method. A large-signal measurement using the same test mount ha...

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Bibliographic Details
Published in:IEEE transactions on microwave theory and techniques 1992-12, Vol.40 (12), p.2359-2366
Main Authors: McSpadden, J.O., Yoo, T., Chang, K.
Format: Article
Language:English
Subjects:
Applied sciences
Circuit properties
Circuit simulation
Circuit testing
Communications And Radar
Electric, optical and optoelectronic circuits
Electronics
Equivalent circuits
Exact sciences and technology
Gallium arsenide
Impedance measurement
Microstrip
Microwave circuits, microwave integrated circuits, microwave transmission lines, submillimeter wave circuits
Packaging
Rectennas
Schottky barriers
Schottky diodes
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Summary:A method has been devised to experimentally characterize a packaged GaAs Schottky barrier diode by inserting it into a microstrip test mount. The nonlinear equivalent circuit parameters of the diode are determined by a small-signal test method. A large-signal measurement using the same test mount has also been configured to determine the power conversion efficiency from microwave to DC as well as determining the de-embedded network impedance of the diode. A nonlinear circuit simulation program using a multireflection algorithm is used to verify the experimental results for the 2.45-GHz diode. A Ka-band mixer diode is simulated for a 35-GHz rectenna. Based on the simulation results, a patch-type 35-GHz rectenna is designed and tested in a waveguide simulator. The efficiency is 29% with 120-mW input power. Because the diode could generate undesirable harmonic radiation, a frequency-selective surface is designed to reduce the second harmonic radiation for a 2.45-GHz rectenna. Theoretical results agree fairly well with experiments for all these studies.< >
ISSN:0018-9480
1557-9670
DOI:10.1109/22.179902