Pilot tone reference-less phase conjugator for phase modulated retrodirective antenna applications

Neil Buchanan; Vincent Fusco

doi:10.1109/LAWP.2015.2442296

Pilot tone reference-less phase conjugator for phase modulated retrodirective antenna applications

Neil Buchanan, Vincent Fusco

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Abstract

This letter presents a simple tracking phased locked loop (PLL) that can be used to track phase-modulated signals and provide a phase-conjugated signal for retrodirective retransmission. The configuration allows the retrodirective antenna to directly track phase-modulated signals with no requirement for a separate continuous wave (CW) pilot tone. The ability to directly track phase-modulated signals is carried out using a 4× multiplier on the tracking PLL reference signal. Practical phase conjugation results are presented for a five-element retrodirective array simultaneously sending and receiving phase-modulated (QPSK) signals. Signals with levels as low as -122 dBm can be phase-conjugated and retransmitted with 30 dBm EIRP.

Original language	English
Pages (from-to)	298-300
Number of pages	3
Journal	IEEE Antennas and Wireless Propagation Letters
Volume	15
Early online date	05 Jun 2015
DOIs	https://doi.org/10.1109/LAWP.2015.2442296
Publication status	Published - 2016

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Pilot tone reference-less phase conjugator for phase modulated retrodirective antenna applications
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Accepted author manuscript, 211 KBLicence: Unspecified

Neil Buchanan
- n.buchananecit.qub.acuk
Person: Academic

Cite this

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title = "Pilot tone reference-less phase conjugator for phase modulated retrodirective antenna applications",

abstract = "This letter presents a simple tracking phased locked loop (PLL) that can be used to track phase-modulated signals and provide a phase-conjugated signal for retrodirective retransmission. The configuration allows the retrodirective antenna to directly track phase-modulated signals with no requirement for a separate continuous wave (CW) pilot tone. The ability to directly track phase-modulated signals is carried out using a 4× multiplier on the tracking PLL reference signal. Practical phase conjugation results are presented for a five-element retrodirective array simultaneously sending and receiving phase-modulated (QPSK) signals. Signals with levels as low as -122 dBm can be phase-conjugated and retransmitted with 30 dBm EIRP.",

author = "Neil Buchanan and Vincent Fusco",

year = "2016",

doi = "10.1109/LAWP.2015.2442296",

language = "English",

volume = "15",

pages = "298--300",

journal = "IEEE Antennas and Wireless Propagation Letters",

issn = "1536-1225",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

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T1 - Pilot tone reference-less phase conjugator for phase modulated retrodirective antenna applications

AU - Buchanan, Neil

AU - Fusco, Vincent

PY - 2016

Y1 - 2016

N2 - This letter presents a simple tracking phased locked loop (PLL) that can be used to track phase-modulated signals and provide a phase-conjugated signal for retrodirective retransmission. The configuration allows the retrodirective antenna to directly track phase-modulated signals with no requirement for a separate continuous wave (CW) pilot tone. The ability to directly track phase-modulated signals is carried out using a 4× multiplier on the tracking PLL reference signal. Practical phase conjugation results are presented for a five-element retrodirective array simultaneously sending and receiving phase-modulated (QPSK) signals. Signals with levels as low as -122 dBm can be phase-conjugated and retransmitted with 30 dBm EIRP.

AB - This letter presents a simple tracking phased locked loop (PLL) that can be used to track phase-modulated signals and provide a phase-conjugated signal for retrodirective retransmission. The configuration allows the retrodirective antenna to directly track phase-modulated signals with no requirement for a separate continuous wave (CW) pilot tone. The ability to directly track phase-modulated signals is carried out using a 4× multiplier on the tracking PLL reference signal. Practical phase conjugation results are presented for a five-element retrodirective array simultaneously sending and receiving phase-modulated (QPSK) signals. Signals with levels as low as -122 dBm can be phase-conjugated and retransmitted with 30 dBm EIRP.

U2 - 10.1109/LAWP.2015.2442296

DO - 10.1109/LAWP.2015.2442296

M3 - Article

SN - 1536-1225

VL - 15

SP - 298

EP - 300

JO - IEEE Antennas and Wireless Propagation Letters

JF - IEEE Antennas and Wireless Propagation Letters

ER -

Pilot tone reference-less phase conjugator for phase modulated retrodirective antenna applications

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