Active phased array antenna with self-oscillating harmonic mixers

Minoru Sanagi; Joji Fujiwara; Shigeji Nogi

doi:10.1109/EUMA.2002.339424

Active phased array antenna with self-oscillating harmonic mixers

Minoru Sanagi, Joji Fujiwara, Shigeji Nogi

Research output: Contribution to conference › Paper › peer-review

2 Citations (Scopus)

Abstract

The active phased array antenna with self-oscillating harmonic mixers has been investigated. The active antenna is composed of a patch antenna receiving RF signal and a parallel feedback type oscillator which operates as the self-oscillating harmonic mixer, and down-converts the received RF signal into IF signal. The oscillator has two ports for output of the oscillated power and for injection signal so that the oscillators can be coupled unilaterally without other nonreciprocal components. In the unilaterally coupled array, the phase differences between the local oscillating signals can be varied by changing the local free-running frequencies of the self-oscillating mixers. The receiving directivity can be controlled by combining the IF signals from the individual active antennas. In the experiment using the two-element array, the receiving pattern was scanned successfully.

Original language	English
DOIs	https://doi.org/10.1109/EUMA.2002.339424
Publication status	Published - Jan 1 2002
Event	2002 32nd European Microwave Conference, EuMC 2002 - Milan, Italy Duration: Sep 23 2002 → Sep 26 2002

Other

Other	2002 32nd European Microwave Conference, EuMC 2002
Country	Italy
City	Milan
Period	9/23/02 → 9/26/02

ASJC Scopus subject areas

Computer Networks and Communications
Hardware and Architecture
Electrical and Electronic Engineering

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10.1109/EUMA.2002.339424

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Cite this

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title = "Active phased array antenna with self-oscillating harmonic mixers",

abstract = "The active phased array antenna with self-oscillating harmonic mixers has been investigated. The active antenna is composed of a patch antenna receiving RF signal and a parallel feedback type oscillator which operates as the self-oscillating harmonic mixer, and down-converts the received RF signal into IF signal. The oscillator has two ports for output of the oscillated power and for injection signal so that the oscillators can be coupled unilaterally without other nonreciprocal components. In the unilaterally coupled array, the phase differences between the local oscillating signals can be varied by changing the local free-running frequencies of the self-oscillating mixers. The receiving directivity can be controlled by combining the IF signals from the individual active antennas. In the experiment using the two-element array, the receiving pattern was scanned successfully.",

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AU - Sanagi, Minoru

AU - Fujiwara, Joji

AU - Nogi, Shigeji

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N2 - The active phased array antenna with self-oscillating harmonic mixers has been investigated. The active antenna is composed of a patch antenna receiving RF signal and a parallel feedback type oscillator which operates as the self-oscillating harmonic mixer, and down-converts the received RF signal into IF signal. The oscillator has two ports for output of the oscillated power and for injection signal so that the oscillators can be coupled unilaterally without other nonreciprocal components. In the unilaterally coupled array, the phase differences between the local oscillating signals can be varied by changing the local free-running frequencies of the self-oscillating mixers. The receiving directivity can be controlled by combining the IF signals from the individual active antennas. In the experiment using the two-element array, the receiving pattern was scanned successfully.

AB - The active phased array antenna with self-oscillating harmonic mixers has been investigated. The active antenna is composed of a patch antenna receiving RF signal and a parallel feedback type oscillator which operates as the self-oscillating harmonic mixer, and down-converts the received RF signal into IF signal. The oscillator has two ports for output of the oscillated power and for injection signal so that the oscillators can be coupled unilaterally without other nonreciprocal components. In the unilaterally coupled array, the phase differences between the local oscillating signals can be varied by changing the local free-running frequencies of the self-oscillating mixers. The receiving directivity can be controlled by combining the IF signals from the individual active antennas. In the experiment using the two-element array, the receiving pattern was scanned successfully.

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