Important: Use custom search function to get better results from our thousands of pages

Use " " for compulsory search eg:"electronics seminar" , use -" " for filter something eg: "electronics seminar" -"/tag/" (used for exclude results from tag pages)


Tags: REJECTION, ONDEMANDWLAN, WITH, ANTENNA, MIMO, ELEMENTS, FOUR, COMPACT, A COMPACT FOUR ELEMENTS UWB MIMO ANTENNA WITH ONDEMANDWLAN REJECTION,
 
 
Thread Rating:
  • 0 Votes - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
A COMPACT FOUR ELEMENTS UWB MIMO ANTENNA WITH ON-DEMANDWLAN REJECTION
Post: #1


.doc  1461527587-TelecomProposalFormat.doc (Size: 100 KB / Downloads: 4)



Problem Statement

A four elements frequency reconfigurable Ultra Wideband (UWB) multiple –input-multiple-output (MIMO) Antenna design; capable of rejection on-demand WLAN band ranging from 8 to 6.2 GHz. The proposed design consists of two U-shaped monopole UWB radiators and two circular slotted-monopole radiators .These monopole radiators are orthogonally with respect to each others to exploit polarization diversity. Whereas the PIN diodes are used to connect the band-stop design with the ground plane to introduce the on-demand band rejection feature. An isolation of better than 17 dB between the four UWB –MIMO elements is achieved in the 2.7 to 12 GHZ frequency range for the both PIN diodes biased and unbiased states.


2. Aims & Objectives

In high speed Wire-less communication technologies such as ; Wire-less Personal Area Networks . Ultra Wideband (UWB) multiple-inputs-multiple-outputs (MIMO) Antennas considered to be an integral part of communication system. However, WLAN signals (in 5.15-5.35 and 5.75-5.8225 GHz bands) may interfere with those of UWB (3.1-10.6 GHz) technology and causing detrimental effects. So; for this reason designers have used different techniques in band-reject UWB or UWB-MIMO Antennas [1-9] . in [1 ]slots have been used in the radiator to get the dual band notched characteristics . While in [2] a pair of slits has been inserted in the radiators to achieve the band-notched functionality. Moreover, related works in [3-5] insertion of stubs to reject the WLAN band and introduction of the polarization diversity to improve the isolation among the elements. An electromagnetic band gap structure has also been implemented to reject the WLAN band along with the band-stop filter for coupling suppression in [6]. Rejection of WLAN band implemented using short stub and parasitic meander lines were inserted to reduce mutual coupling in [7] . In [8] , different type of resonators were used to attain the band-functionality and also polarization diversity between nearly placed elements was exploited to attain high isolation. Another technique in [9] involves insertion of stubs in the ground plane to mitigate the interference between the UWB and WLAN bands. Moreover, A k/2 length of open stub has also been used to the ground plane (55386.5mm2) of the Antenna having a large reflector size [7]. Generally, Previous works dealing the band rejection either emphasized on rejecting the multiple bands or portion of the bands only permanently, Also, Most of the designs in the literature focus on the band rejection feature of two elements UWB MIMO antennas.


3.1 Antenna

An antenna is a metallic device used for transmitting and receiving electromagnetic waves often referred to as radio waves [1]. In other words antenna is a transducer that converts radio frequency current to electromagnetic waves that are then radiated into space and/or converts electromagnetic waves received from space into radio frequency current. Antennas usually find its application in television and radio broadcasting, radar, wireless LAN, mobile phones, space exploration etc. Antennas can either be Omni-directional or directional. Omni-directional antenna radiates equally in all directions whereas directional radiates more in one direction than in the other. In modern days antennas mostly serve as a directional device as they are required to optimize the radiation energy in required directions and suppress it in other directions [2]. In order to improve the overall system performance of wireless communication a good antenna design is required.



3.2 MIMO (Multiple input, Multiple Output)

MIMO (multiple input, multiple output) is an antenna technology for wire-less communication in which multiple Antennas are used at both the source (transmitter) and destination (receiver) . The Antenna at each end of communications circuit are combined to minimize errors and optimized data speed. MIMO one of several forms of smart Antenna technology.


.
3.3 UWB ( Ultra-Wideband)

Ultra wideband (also known as ultra-wide band and Ultraband) is a radio technology pioneered by Robert A scholtz and others that can use a very low energy level for short range high bandwidth communication over a large portion of Radio spectrum . UWB has traditional applications in none-cooperative Radar imaging . Most recent applications target sensor data collection , precision locating and tracking applications.







4. Methodology of Project

Write methodology of project

i. Mathematical approach
ii. Software approach
iii. Analysis
iv. Expected results




4.1 Mathematical approach

A mathematical analysis will be presented to show the compact four elements UWB MIMO Antenna.



4.2 Software approach

I will implement this idea in Software. The software I am going to use are HFSS.




4.3 Analysis

The results obtained from simulation are analyzed for the expected results and the results are also compared with the results of existing simple Antennas.





4.4 Result Expected

The expected outcomes from this research are as follows
i. Increased bandwidth
ii. Increased data speed.
iii. Minimize errors


5. Utilization of Project Results

This research idea will be used in applications which require high bandwidth and high data speed and minimum errors in small range communication.
 


[-]
Quick Reply
Message
Type your reply to this message here.

Image Verification
Image Verification
(case insensitive)
Please enter the text within the image on the left in to the text box below. This process is used to prevent automated posts.

Possibly Related Threads...
Thread: Author Replies: Views: Last Post
  abstract for two four quadrent chopper in indian military Guest 1 0 17-11-2017 01:28 PM
Last Post: jaseela123
Tongue yagi uda antenna topic for seminar Guest 1 179 14-10-2017 10:24 AM
Last Post: jaseela123
  seminar report on compact heat exchanger pdf Guest 1 0 11-10-2017 12:10 PM
Last Post: jaseela123
  four channel fault annunciation for industries Guest 1 147 11-10-2017 10:05 AM
Last Post: jaseela123
  four quadrant dc motor speed control with microcontroller pdf Guest 1 176 11-10-2017 09:17 AM
Last Post: jaseela123
  project on inversion of four bar mechanism Guest 1 145 09-10-2017 11:19 AM
Last Post: jaseela123
  FOUR CHANNEL FAULT ANNUNCIATION FOR INDUSTRY Guest 1 220 07-10-2017 12:17 PM
Last Post: jaseela123
  mtech project report on mimo Guest 1 194 04-10-2017 03:03 PM
Last Post: jaseela123
  high speed four way hacksaw machine Guest 1 263 04-10-2017 12:19 PM
Last Post: jaseela123
  disadvantage of textile antenna Guest 1 169 30-09-2017 02:19 PM
Last Post: jaseela123
This Page May Contain What is A COMPACT FOUR ELEMENTS UWB MIMO ANTENNA WITH ON-DEMANDWLAN REJECTION And Latest Information/News About A COMPACT FOUR ELEMENTS UWB MIMO ANTENNA WITH ON-DEMANDWLAN REJECTION,If Not ...Use Search to get more info about A COMPACT FOUR ELEMENTS UWB MIMO ANTENNA WITH ON-DEMANDWLAN REJECTION Or Ask Here

Options: