DESIGN AND IMPLEMENTATION ANTENNA E-SHAPED WIDEBAND AT RANGE FREQUENCY 1.8 GHZ - 2.4 GHZ

PRESENTED BY :EVYTA ANGELYA

111 070 070

Advisor IBAMBANG SETIA

N.ST.MT

Advisor IIDr. YUYU WAHYU, Ir.

M.T

Outline

Background Research Objective Problem Limitation Theory Simulation and Implementations Measurement and Analysis Conclusion and Suggestions

Background

Nowadays, wireless technology increase rapidly. So needed a device antenna can support that.

Microstrip antenna are widely used because of the advantages such as low profile, light weight and and conformity. However, narrow bandwidth is main disadvantages of microstrip antenna.

Research Objectives

Design and implement Antenna wideband that work at range frequency 1.8 GHz- 2.4 GHz and covered several wireless technologies at that range.

Understanding the characteristic of parameter on antenna E-shaped which controlling the achievable bandwidth .

Previous Research

1. Antenna E-shaped Rectangular with achievable bandwidth 408 MHz (1440-1848 MHz.) and VSWR < 2.

2. Antenna E-shaped patch triangular with achievable bandwidth 350 MHz (1562-1912 MHz) and VSWR <2 .

Con’d

3. Antenna E-shaped patch circular with achievable bandwidth 642 MHz (1482-2124 MHz) and VSWR <2 .

4. Antenna E-shaped Triple band resonated at frequency 900 MHz, 1800 MHz and 2400 MHz

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Problem Limitation

Structure microstrip antenna simulation using rectangular patch modified form the letter of E

The simulation using HFSS Ansoft 10 Research as specification that range

frequency of antenna planned at 1.8GHz-2.4 GHz

Focus research at microstrip antenna which can yield optimum wideband antenna for implementation

Using probe feed as feeding and Air as substrate

Theory

Microstrip Antenna1. GROUND PLANE2. SUBSTRATE3. PATCH

Advantages Vs disadvantages 1.Low profile 1. Narrow Bandwidth2.Light weight 2. Lower Gain3.Conformity

Increasing Bandwidth

Several Technique increasing Bandwidth1.Increasing substrate thickness2.Using parasitic element either in

coplanar or stack configuration3.Modifying the shape of common

radiator Patch

Modifying Radiator Patch

1.Antenna S-shaped2.Antenna U-shaped3.Antenna E-shaped4.Antenna F-shaped

Antenna E-shaped

E-shaped antenna is the antenna which is formed from a rectangular microstrip modified by adding a slit on both edge it is meant to shift the resonance frequency.

Meandering Technique

Techniques to bending length of each line Antennas in order to make the antenna be Compact and shifting resonant Frequency so that the bandwidth becomes wider.

Simulation and Implementation

As for step taken is as follows:1. Determination specification of

antenna2. Election Substrate3. Calculation of Dimension of patch

antenna4. Design of E-Shape Microstrip

Antenna5. Simulation use the software Ansoft

HFSS 106. Realization of E-Shape Microstrip

Antenna

Flowchart design

Optimized parameter E-shaped

1. Optimized value of W1 and W2

Con’d

2. Optimized Value of Parameter Ls

Con’d

3. Optimized feeding point

Simulation Vs Realization

VSWR < 1.81.792 – 2.416 GHz

VSWR < 1.81.77 GHz – 2.48 GHz

1. VSWR

Con’d

2. GAIN

Gain simulation is 7.89 dBi

Gain measurement 8. 65 dBi

Radiation Pattern

Con’d

Impedance

Conclusion

Antenna E-shaped can operated at range frequency 1800 MHz- 2400MHz

From the results of antenna measurements and simulation realization of ≥ 600 MHz bandwidth which already meet the initial specifications of the antenna design

Antenna radiation pattern is unidirectional Parameter of slit such as The slot Length (Ls),

Width, and Position feeding (Ps) are very important controlling achievable bandwidth.

Suggestion

need of improvement accuracy in making antenna so that the result of realization more able to come near result of simulation.

Creating E-shaped antenna using another substrate for example FR4 or duroid so that the smaller dimensions can be obtained without decreasing achievable bandwidth.

THANK YOU