ROTMAN LENS DESIGN WITH WIDEBAND DRA ARRAY

Wideband Rectangular Dielectric Resonator Antenna (dra) with Slot-fed Design

A novel wideband rectangular dielectric resonator antenna (DRA) is proposed in this paper. A hybrid structure with an isolated dielectric resonator (DR) and an equivalent air-dielectric DR is introduced by lifting the resonator from the ground plane. The hybrid structure is excited by a slot-fed mechanism to obtain a smooth transition between each resonant mode. The resonant modes of the isolat...

rotman lens

آرایه فازی به منظور هدایت بیم در راستایی خاص نیازمند شبکه تغذیه ویژه ای می باشد. رتمن لنز به عنوان یکی از این ساختارهای تغذیه با قابلیت تحریک چند بیم در زوایای متفاوت در یک زمان، استفاده گسترده ای پیدا کرده است. در این پژوهش مهم ترین عوامل موثر بر پهنای باند این شبکه در ساختار مایکرواستریپ، که شبکه تطبیق امپدانس، رفتار انتشاری موج در بخش صفحات موازی و خطای فاز خطوط انتقال می باشند، بررسی شده و ...

Design and Performance Analysis of Millimetre-Wave Rotman Lens-Based Array Beamforming Networks for Large-Scale Antenna Subsystems

This paper presents the comprehensive analytical design and numerical performance evaluation of novel millimetre-wave (mm-wave) switched-beam networks, based on the Rotman lens (RL) array feeding concept. These passive array devices have been designed for operation in the 28GHz frequency band, covering the whole 18–38 GHz frequency range. The primary objective of the work is to conduct a thorou...

Rotman Lens Antenna in Microstrip Configuration

Final Report : Rotman Lens Sidewall Design and Optimization with Hybrid Hardware / software Based Programming

Number of Papers published in peer-reviewed journals: Final Report: Rotman Lens Sidewall Design and Optimization with Hybrid Hardware/software Based Programming Report Title This final report provides a summary of the tasks completed under this contract: 1. Hybrid bio-inspired optimization: This task involves developing a hybrid bio-inspired optimization algorithm which enhances the Artificial ...