نتایج جستجو برای: microstrip antenna array

تعداد نتایج: 174426  

2015
Ram Krishan Vijay Laxmi

Modern wireless and mobile communication systems requires antenna which should have light weight, low profile, low cost, and easy to be integrated with RF devices. This demand is completed by microstrip antennas. This paper presents rectangular microstrip patch antenna for WLAN applications designed using IE3D software. The microstrip antenna is designed with dielectric substrate as Rogers RT/d...

2010
Daniel G. Rucker Haider R. Khaleel Sunny S. Raheem Hussain M. Al-Rizzo

Flexible microstrip antenna arrays have become a necessity in today's miniaturized biomedical wireless devices. Implantable and wearable biomedical devices such as pacemakers, drug delivery systems, heart rate monitors, and respiratory monitors need to communicate with exterior base station devices and relayed to healthcare professionals. In this paper, multiple flexible microstrip antenna arra...

In this paper, new method for reduction of Specific Absorption Rate (SAR) in mobile handset is presented. The idea is based on the array antenna theory and this caused that by improvement of the gain, SNR be preserved and instead of one antenna and one strong hotspot, have the two antenna with two weak hotspot. For this array, the antenna must be equal with similar pattern to have the best arra...

2012
ARVIND KUMAR SINGH

This paper presents the increase in bandwidth of a Microstrip Antenna using a simple slotted structure fed by Microstrip line. The main aim of proposed work is to obtain a large bandwidth antenna with reduced size. The proposed microstrip antenna has a wide bandwidth covering the range from 1.806-2.978 GHz. By using simple Microstrip Line feed wide bandwidth of 48.99% has been achieved. The pro...

2012
Sudhir Bhaskar Sachin Kumar Gupta

Despite the many advantages of microstrip patch antennas, they do have some considerable drawbacks. One of the main limitations with patch antennas is their inherently narrowband performance due to its resonant nature. With bandwidth as low as a few percent; broadband applications using conventional patch designs are limited. So for the antenna miniaturization and bandwidth improvement H-shaped...

2016
A. Manikandan Uma Maheswari

In these research paper two designs such as rectangular microstrip antenna and concentric equilateral triangular microstrip antenna are presented. The resonant frequency of this antenna is 8 GHz suitable for wireless applications. The antenna is fed by microstrip feeding technique. Design of an antenna using ADS (Advanced Design System), based on MoM (Method of Moments) has been used to analyze...

Journal: :روش های عددی در مهندسی (استقلال) 0
مسعود کهریزی m. kahrizi عباسعلی حیدری مزرعه آخوند و مسعود کیوانفر a. heidary and m. kyvanfar

analysis of aperture-coupled microstrip antennas with a superstrate using space domain closed form greens functions is presented. integral equations are derived from applying the boundary conditions on the radiating patch, across the aperture, and on the microstrip feedline. the computation of space domain greens functions is performed using the closed-form. the solution of the integral equatio...

2014
Kamaljeet Singh K. Nagachenchaiah

Microstrip realization of beam forming network integrated with dual-band antenna array on silicon substrate is presented. Design and implementation of broad band topologies of hybrid and phase shifter are discussed and further integrated to realize wideband 4× 4 Butler matrix. Proposed wideband Butler matrix is used to realize single-band and dual band antenna architectures on silicon substrate...

2012
M. F. Ain Y. M. Qasaymeh Z. A. Ahmad M. A. Zakariya M. A. Othman S. S. Olokede M. Z. Abdullah

This paper presents a design of circularly polarized dielectric resonator antenna (DRA) array. The dielectric resonators (DRs) were excited by rectangular aperture coupling slots feed with a linear microstrip. The slot positions were determined based on the characteristic of standing wave ratio over a short ended microstrip to deliver the maximum amount of coupling power to the DRs, in order to...

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