A Compact Dynamic Antenna for Physical Layer Wireless Security
Sheng Huang, Jacob R. Randall, Cory Hilton, Jeffrey A. Nanzer

TL;DR
This paper introduces a compact, dynamically switchable omnidirectional antenna with directional modulation to enhance physical layer wireless security, enabling narrow secure regions while maintaining broad coverage.
Contribution
A novel, miniaturized antenna design with real-time dynamic switching for secure narrow beam transmission in wireless communication.
Findings
Achieves approximately 34° narrow E-plane information beam for 16-QAM.
Attains about 15° E-plane beam for 256-QAM.
Maintains 360° omnidirectional H-plane coverage.
Abstract
We propose a novel omnidirectional antenna design incorporating directional modulation for secure narrow planar information transmission. The proposed antenna features a compact size and stable omnidirectional radiation performance by employing two tightly spaced, printed meander line monopole antennas, acting as a single radiating element. To achieve a narrow information secure region, the proposed antenna is fed by differential power excitation of two ports with real-time dynamic switching. This leads to phase pattern modulation only along the electrical polarization, resulting in directionally confined information recoverable region in the E-plane, while maintaining highly constant or static omnidirectional H-plane pattern, inducing a information recoverable region. The dynamic antenna is designed and fabricated on a single layer of Rogers RO4350B which provides a…
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Taxonomy
TopicsAntenna Design and Analysis · Advanced Antenna and Metasurface Technologies · Cryptographic Implementations and Security
