International Research Journal of Engineering and Technology (IRJET) Volume: 04 Issue: 04 | Apr -2017
www.irjet.net
e-ISSN: 2395 -0056 p-ISSN: 2395-0072
DESIGN AND SIMULATION OF DIFFERENT SLOTTED MICROSTRIP PATCH ANTENNA FOR IMPROVED RETURN LOSS
-----------------------------------------------------------------------------------------------------------------------------------------------------ABSTRACT: An antenna is a very important part of microwave communication .It helps in both transmitting and receiving information .Microstrip path antenna have attractive features such as small size , low weight, low cost, and low profile. It is easy to design and fabricate. Introduction of different shape of slots are very important for improving the parameters of microstrip patch antenna. Here we are going to discuss very important parameter of antenna i.e. return loss. We are going to the return loss of three different slotted microstrip patch antenna. We are going to design cross circle and square shape slots. KEYWORDS: Return loss, slots, microstrip antenna
circle respectively . There graph of return losses of respective antenna after designing is shown below. The antennas are designed at the frequency of 2.4 GHz
1-INTRODUCTION The ratio of reflected power from the load to the incident power on that load is known as return loss .It is expressed in dB . Return loss (RL)=
[
=-10
]
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The return loss thus tells us the percentage of the incident power reflected by load (expressed in decibels).
figure 1(a): circular slot microstrip patch antenna
2- DESIGN AND SIMULATION We have designed three slotted microstrip patch antenna through HFSS (high frequency structural simulator) . The shape of slots are cross , square and Š 2017, IRJET
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