Two-dimensional unilaterally coupled active antenna arrays with wide angle beam scanning capability

Ragip Ispir; Shigeji Nogi; Minoru Sanagi

doi:10.1109/EUMA.1999.338342

Two-dimensional unilaterally coupled active antenna arrays with wide angle beam scanning capability

Ragip Ispir, Shigeji Nogi, Minoru Sanagi

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

4 Citations (Scopus)

Abstract

A unilateral coupling scheme for two-dimensional active antenna arrays was developed. Each oscillator is coupled to one of its neighbor oscillators unilaterally in a comb-like arrangement. The phase shifts along both axes of the array can be controlled by adjusting the frequency of only the back oscillators. Two paths, which are different in length and each contains an amplifier, were employed for unilateral coupling. Turning on the desired one out of two amplifiers, one can change the range in which the phase shift can be varied. In a 2×2 experimental oscillator array, the main beam could be scanned 40° in H-plane and 25° in E-plane totally.

Original language	English
Pages	68-71
Number of pages	4
DOIs	https://doi.org/10.1109/EUMA.1999.338342
Publication status	Published - Jan 1 1999
Event	1999 29th European Microwave Conference, EuMC 1999 - Munich, Germany Duration: Oct 5 1999 → Oct 7 1999

Other

Other	1999 29th European Microwave Conference, EuMC 1999
Country	Germany
City	Munich
Period	10/5/99 → 10/7/99

ASJC Scopus subject areas

Computer Networks and Communications
Hardware and Architecture
Electrical and Electronic Engineering

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10.1109/EUMA.1999.338342

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abstract = "A unilateral coupling scheme for two-dimensional active antenna arrays was developed. Each oscillator is coupled to one of its neighbor oscillators unilaterally in a comb-like arrangement. The phase shifts along both axes of the array can be controlled by adjusting the frequency of only the back oscillators. Two paths, which are different in length and each contains an amplifier, were employed for unilateral coupling. Turning on the desired one out of two amplifiers, one can change the range in which the phase shift can be varied. In a 2×2 experimental oscillator array, the main beam could be scanned 40° in H-plane and 25° in E-plane totally.",

author = "Ragip Ispir and Shigeji Nogi and Minoru Sanagi",

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