Electromagnetic Modeling and Simulation of a Directly Modulated Patch Antenna

The direct modulation of an L -band microstrip patch antenna with integrated fast-switching p-i-n diodes is explored over a range of modulation frequencies well beyond the resonant bandwidth of the antenna. Electromagnetic simulation of one embodiment of a directly modulated antenna, including an eq...

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Bibliographic Details
Published in:IEEE antennas and wireless propagation letters 2010, Vol.9, p.779-782
Main Authors: Keller, Steven D, Palmer, W Devereux, Joines, William T
Format: Article
Language:English
Subjects:
Antenna radiation patterns
Antennas
Bandwidth
Circuit simulation
Computational electromagnetics
Computer simulation
Diodes
direct modulation
Electromagnetic modeling
Electromagnetic radiation
Frequency modulation
Mathematical models
Microstrip antennas
Modulation
p-i-n diode
P-i-n diodes
patch antenna
Patch antennas
Predictive models
Resonance
Voltage
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Description
Summary:The direct modulation of an L -band microstrip patch antenna with integrated fast-switching p-i-n diodes is explored over a range of modulation frequencies well beyond the resonant bandwidth of the antenna. Electromagnetic simulation of one embodiment of a directly modulated antenna, including an equivalent circuit model for the p-i-n diode as a function of bias voltage, provides insight into the mechanisms behind the modulation effect and serves as a design tool to optimize and predict the modulation of the antenna radiation pattern.
ISSN:1536-1225
1548-5757
DOI:10.1109/LAWP.2010.2063414