Single-Layer Fixed-Frequency Beam-Scanning Goubau-Line Antenna Using Switched PIN Diodes

Single-Layer Fixed-Frequency Beam-Scanning Goubau-Line Antenna Using Switched PIN Diodes

In this letter, a single-layer electronically steerable leaky-wave antenna based on the Goubau line is presented. The modulation units consist of metalines connected by periodically loaded switchable p-i-n diodes and its biasing circuit. These p-i-n diodes are used as switches to dynamically control...

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Veröffentlicht in:IEEE microwave and wireless components letters 2019-06, Vol.29 (6), p.430-432
Hauptverfasser: Tang, Xiao-Lan, Zhang, Qingfeng, Chen, Yifan, Liu, Haiwen
Format: Artikel
Sprache:eng
Schlagworte:
Antenna measurements
Antennas
Beam steering
Encoding
Frequency modulation
Goubau line
Leaky waves
leaky-wave antenna (LWA)
Modulation
P-i-n diodes
Periodic variations
PIN diodes
Prototypes
Scanning
surface plasmon polaritons
Switches
tunable
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Beschreibung
Zusammenfassung:In this letter, a single-layer electronically steerable leaky-wave antenna based on the Goubau line is presented. The modulation units consist of metalines connected by periodically loaded switchable p-i-n diodes and its biasing circuit. These p-i-n diodes are used as switches to dynamically control the modulation periodicity, and the antenna featuring low profile can, therefore, provide tunable beam-scanning angles at a fixed frequency. Measured antenna prototype demonstrates beam-steering capability of 74° at 4.35 GHz.
ISSN:1531-1309
2771-957X
1558-1764
2771-9588
DOI:10.1109/LMWC.2019.2913779