ANN model and design of wide ANN model and design of wide band Microstrip-line-fed antenna band Microstrip-line-fed antenna with defected ground structure with defected ground structure

for Ku band applicationsfor Ku band applications

Presented by: Presented by: AKSHAT GANGWAR (12EI03)AKSHAT GANGWAR (12EI03)

ASHISH MISHRA (12EI09)ASHISH MISHRA (12EI09)

ContentsContents

Introduction Microstrip Antennas Different Parameters of Microstrip AntennaDifferent Parameters of Microstrip Antenna Different Shapes of Microstrip Patch ElementsDifferent Shapes of Microstrip Patch Elements Project Work Applications Conclusion Reference

IntroductionIntroduction

Antenna is one type of transducer that converts the electrical energy into the electro-magnetic energy in form of electromagnetic waves.

According to IEEE standards antenna is a means of radiating and receiving radio waves, it is a transitional structure between free space and guided device.

A Micro-strip patch antenna consists of a radiating patch on one side of a dielectric substrate which has a ground plane on the other side.

Microstrip antennas are widely used due to their low profile, ease of fabrication, and capability of integration with other device.

Microstrip AntennasMicrostrip Antennas

Different Parameters of Microstrip AntennaDifferent Parameters of Microstrip Antenna

L = Length of the Microstrip Patch Element

W = Width of the Microstrip Patch Element

t = Thickness of Patch

h = Height of the Dielectric Substrate

Different Shapes of Microstrip Patch Different Shapes of Microstrip Patch ElementsElements

Project WorkProject Work

To design the microstrip line-fed antenna with defected ground structure by using HFSS.

ANN modelling of designed antenna

The Design SpecificationsThe Design Specifications

ParametParameterer

(mm)(mm) ParametParameterer

(mm)(mm)

aa 5.505.50 LLmlml 27.4127.41

rr11 1.501.50 hh 1.61.6

wwmlml 2.302.30 DD 3636

Antenna With Defected Ground Antenna With Defected Ground StructureStructure

(i) Side view (ii) Top view

Patch Antenna Covered By AirboxPatch Antenna Covered By Airbox

Determination Of Center Frequency Determination Of Center Frequency Using S-parameterUsing S-parameter

ApplicationsApplications

These are used for integrated These are used for integrated phased array systems.phased array systems.

Used in GPS (Sat. Navigational Used in GPS (Sat. Navigational System) technology.System) technology.

Mobile satellite communications, Mobile satellite communications, the Direct Broadcast Satellite the Direct Broadcast Satellite (DBS) system & remote (DBS) system & remote sensing.sensing.

Non-satellite based Non-satellite based applications- such as medical applications- such as medical hyperthermia.hyperthermia.

Conclusion

The Microstrip linefed antenna The Microstrip linefed antenna with circular shape defect in with circular shape defect in the ground plane is designed. the ground plane is designed.

Accurate designing equations Accurate designing equations are presented for wideband are presented for wideband Microstrip antenna for the Microstrip antenna for the proposed structure. proposed structure.

Reference

• http://en.wikipedia.org/wiki/Microstrip_antenna• http://www.microwaves101.com/encyclopedia/

antenna_ustrip.cfm• http://dx.doi.org/10.1016/j.aeue.2014.04. 017

Thank You!Thank You!