A 10-GHz high-efficiency active antenna sub-array

Paji, S.; Popovi, Zoya

doi:10.1109/mwsym.2002.1012146

Cited by 3 publications

(1 citation statement)

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“…The corporate feed is a one-to-four Wilkinson divider, providing good isolation between amplifiers. Based on measurements on a back-to-back divider/combiner circuit, insertion loss of the four-element feed is estimated to be 0.7 dB [24]. A schematic of the four-element subarray is shown in Fig.…”

Section: Four-element Active Subarray Designmentioning

confidence: 99%

An efficient x -band 16-element spatial combiner of switched-mode power amplifiers

Pajic

Popović

2003

IEEE Trans. Microwave Theory Techn.

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This paper describes the design, implementation, and characterization of a high-efficiency 10-GHz amplifier antenna array for spatial power combining. An average drain efficiency of 70% at 162 W effective isotropic radiated power, or about 1.5 W of transmitted power, is measured for an array of 16 amplifiers consisting of four four-element subarrays. The power-combining efficiency of the 16-element array is above 79%. The active device is a low-cost GaAs MESFET with a maximum available power in class A of 21 dBm. The single class-E power amplifier delivers 20.3 dBm with 67% drain efficiency and 58% power-added efficiency.

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Section: Four-element Active Subarray Designmentioning

confidence: 99%