A non-isolated power-combining antenna for outphasing radio transmitters

F.P. Wilt, van der; E. Habekotté; A.B. Smolders

doi:10.1109/TAP.2015.2504456

A non-isolated power-combining antenna for outphasing radio transmitters

F.P. Wilt, van der, E. Habekotté, A.B. Smolders

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Abstract

In this work, we propose a two-port antenna which can fulfill the extra function of power combiner in an outphasing radio transmitter. The antenna has an equivalent circuit nearly identical to that of the quarter-wavelength transmission line power combiner terminated by a resistive load representing the separate antenna. Therefore, it has the typical characteristics of a non-isolated combiner: low losses at cost of no port isolation. The proposed concept is verified by simulations based on a theoretical model and validated with measurements from a prototype for the case of a 2.4-GHz QAM64 transmit signal.

Original language	English
Pages (from-to)	761-766
Journal	IEEE Transactions on Antennas and Propagation
Volume	64
Issue number	2
DOIs	https://doi.org/10.1109/TAP.2015.2504456
Publication status	Published - 2016

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abstract = "In this work, we propose a two-port antenna which can fulfill the extra function of power combiner in an outphasing radio transmitter. The antenna has an equivalent circuit nearly identical to that of the quarter-wavelength transmission line power combiner terminated by a resistive load representing the separate antenna. Therefore, it has the typical characteristics of a non-isolated combiner: low losses at cost of no port isolation. The proposed concept is verified by simulations based on a theoretical model and validated with measurements from a prototype for the case of a 2.4-GHz QAM64 transmit signal.",

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PY - 2016

Y1 - 2016

N2 - In this work, we propose a two-port antenna which can fulfill the extra function of power combiner in an outphasing radio transmitter. The antenna has an equivalent circuit nearly identical to that of the quarter-wavelength transmission line power combiner terminated by a resistive load representing the separate antenna. Therefore, it has the typical characteristics of a non-isolated combiner: low losses at cost of no port isolation. The proposed concept is verified by simulations based on a theoretical model and validated with measurements from a prototype for the case of a 2.4-GHz QAM64 transmit signal.

AB - In this work, we propose a two-port antenna which can fulfill the extra function of power combiner in an outphasing radio transmitter. The antenna has an equivalent circuit nearly identical to that of the quarter-wavelength transmission line power combiner terminated by a resistive load representing the separate antenna. Therefore, it has the typical characteristics of a non-isolated combiner: low losses at cost of no port isolation. The proposed concept is verified by simulations based on a theoretical model and validated with measurements from a prototype for the case of a 2.4-GHz QAM64 transmit signal.

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DO - 10.1109/TAP.2015.2504456

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JO - IEEE Transactions on Antennas and Propagation

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A non-isolated power-combining antenna for outphasing radio transmitters

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