Abstract
In this study, a wideband low profile microstrip antenna design for C-band applications is presented. The proposed antenna consists of a monopol log periodic patch in the equilateral triangular dimensions with the microstrip line fed and a rectangular ground plane. The antenna has 9×19.8 mm2 overall size, thickness of 1.6 mm and 4.3 dielectric constant. According to the simulation results, the proposed antenna has a very wide bandwidth while operating in the frequency band of 4.25-7.95 GHz and 5 GHz resonance frequency. The proposed antenna was also prototyped on FR4 substrate with the 0.02 tangent loss and the measurement results were quite similar by the simulated results.
Highlights
Wireless communication systems with the spread of mobile devices have become one of the most important elements of our daily life
In modern wireless communication systems due to the increasing mobility and miniaturization of mobile devices low profile are needed for high mobility and wideband antennas are needed for high speed data transmission with maximum coverage
Microstrip antennas are the most commonly used antennas in wireless communication systems owing to their features such as low profile, light weight, low-cost, easy to integrate planar or non-planar surfaces, easy to be manufactured by a printed circuit board (PCB) technology and compatible with microwave integrated circuits (MIC) [3,4]
Summary
Wireless communication systems with the spread of mobile devices have become one of the most important elements of our daily life. Narrow bandwidth is one of the most important disadvantages of conventional microstrip antennas To overcome this narrowband trouble, a number of different methods can be used, like adding slots [5], using the defected ground structures (DGS) [6] and using the log periodic arrays [7,8,9,10]. The geometry of the log periodic dipole antenna (LPDA) was applied to microstrip structures by several researchers to obtain better antenna performance in terms of wide bandwidth, reduced size and better gain [710]. A microstrip log periodic monopole antenna (LPMA) with a very small size and simple geometry is presented. It is seen that simulation and measured results are quite similar
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