Explanation of DC/RF Loci for Active Patch Antennas

Nazar Ali; Abubakar Hussaini; Raed Abd-Alhameed; Neil McEwan; Mark Child; E. El-Khazmi; Jonathan Rodriguez

1st International Workshop on Energy Efficient and Reconfigurable Transceivers

Research Article

Explanation of DC/RF Loci for Active Patch Antennas

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@INPROCEEDINGS{10.1007/978-3-642-35155-6_58,
    author={Nazar Ali and Abubakar Hussaini and Raed Abd-Alhameed and Neil McEwan and Mark Child and E. El-Khazmi and Jonathan Rodriguez},
    title={Explanation of DC/RF Loci for Active Patch Antennas},
    proceedings={1st International Workshop on Energy Efficient and Reconfigurable Transceivers},
    proceedings_a={EERT},
    year={2012},
    month={12},
    keywords={Active antenna power amplifier DC and RF power patch antenna},
    doi={10.1007/978-3-642-35155-6_58}
}

Nazar Ali
Abubakar Hussaini
Raed Abd-Alhameed
Neil McEwan
Mark Child
E. El-Khazmi
Jonathan Rodriguez
Year: 2012
Explanation of DC/RF Loci for Active Patch Antennas
EERT
Springer
DOI: 10.1007/978-3-642-35155-6_58

Nazar Ali¹^,*, Abubakar Hussaini²^,*, Raed Abd-Alhameed³^,*, Neil McEwan³^,*, Mark Child³^,*, E. El-Khazmi³, Jonathan Rodriguez²^,*

1: Khalifa University
2: Instituto de Telecomunicações
3: University of Bradford

*Contact email: ntali@kustar.ac.ae, ash@av.it.pt, r.a.a.abd@bradford.ac.uk, n.j.mcewan@bradford.ac.uk, m.b.child@bradford.ac.uk, jonathan@av.it.pt

Abstract

A characteristic loop locus of dc power versus RF output power was observed as the frequency was varied around the optimum point of an operational active antenna. A new technique was introduced into the simulation, plotting the dependence of parameters such as supply current, efficiency or output power on internal impedance as seen by the naked transistor. It is now clear that the loop was formed as a consequence of the interaction of the transistor packaging elements with the patch impedances.

Keywords: Active antenna power amplifier DC and RF power patch antenna

Published: 2012-12-05

: http://dx.doi.org/10.1007/978-3-642-35155-6_58