Design Of Array and Circular Polarization Microstrip Antenna For LTE Communication

Abstract

This paper proposes a high gain microstrip antenna with circular polarization for LTE applications at a working frequency of 2300 MHz. Gain of antenna is optimized by using an array method with 4 elements arranged in plannar using feed line of 50 Ohm, 100 Ohm and 70.7 Ohm. The proposed antenna designed using FR-4 substrate with (Ɛr) = 4.3, substrate thickness (h) of 1.6 mm and loss tangent (tan δ) of 0.0265. Gain of antenna can be optimized by increasing the number of elements in the array of the antenna. Circular polarization can be obtained by cutting the edge of a rectangular patch antenna with an angle of 45 0 . From the simulation results obtained reflection coefficient value of -20.02 dB and VSWR of 1.22 at the working frequency of 2300 MHz. The gain of proposed microstrip antenna is 10.56 dB with an impedance bandwidth value of 714 MHz (1925( -2639. The proposed antenna obtained a circular polarization with axial ratio of 1.745 dB at working frequency of 2300 MHz. Array method with four elements increased the gain of antena until 45.07% compared to the single element antenna.

Reduction of mutual coupling in a microstrip array antenna with circular polarization in the C-frequency band using a combination of DGS and EBG methods

“…Therefore, after the initial design and analysis of the antenna, it is necessary to change the power supply or the amount of cut, the necessary optimization to achieve the desired parameters. If the area of the cut sections in the corners of the patch is denoted by ΔS, the value of ΔS and the resonant frequency of the excited modes are [40]:…”

“…Analytical calculation of Q 0 is not simple, but it is possible to determine the bandwidth of the antenna by simulating the antenna using cst microwave studio software according to the S and VSWR charts [40]. After determining the amount of cutting corners, it is necessary to determine the antenna power supply.…”

Design of 5G-oriented patch antennas, a comprehensive survey

“…If the elements are connected by a fixed feeding network, then greater gain than a single antenna will be accomplished, but electronic steering of the radiated beam won't be possible. This type of array can be seen in [36][37][38]. The array presented in [39] is capable of beamforming only in the vertical direction, because all its horizontal elements are connected by a fixed feeding network.…”

2×1 Truncated Corner Microstrip Array Antenna to Increase Gain and Bandwidth for LTE Applications at 2.3 GHz Frequency

“…These studies proposed a microstrip antenna with several methods. Among them were using a 4×4 MIMO microstrip antenna [1], which produced a gain of 7.3 dB and a bandwidth of 251.5 MHz at a frequency of 2.4 GHz and a microstrip antenna using a 2×1 truncated corner array method [2] which produced a gain of 7.974 dB at a frequency of 2.3 GHz. Previous contributions were using a rectangular microstrip antenna with a U-slot [3] which produced a return loss value of -14.55 dB, Voltage Standing Wave Ratio (VSWR) of 1.4, a gain of 3.72 dB and bandwidth of 111 MHz at a frequency of 1.8 GHz and using a dual-band rectangular microstrip antenna [4] which produced a bandwidth of 1.928 MHz and a gain of 4.8 dB at a frequency of 2.4 GHz.…”