Beam Splitting Planar Inverted F Antenna For 5G Communication

A planar inverted-F antenna with symmetrical split beams and loaded with radio frequency absorbers (here Eccosorb MCS) for 5G communication is proposed. The multi-beam antennas reduce the requirement of number of antennas and provide wide coverage. But they require a complex system such as a phased array or MIMO antennas. On the other hand, multi-beam antennas do not have such requirements. In this work, we propose a PIFA antenna which achieves multi-beam behaviour by six slabs of absorbers placed periodically between the PIFA patch and substrate to split the beams into two directions at +26°. The proposed antenna obtains a frequency band of 24.2- 25.7 GHz and achieves a high gain of approximately 10 dB at +26°. The performance of the proposed antenna is suitable for G communication. All simulations of the antenna are carried out using Ansys HFSS. The design was validated by simulations and later confirmed with measurements. &nbsp

Wideband Slotted Planar Inverted-F Antenna using Eccosorb MCS Absorber for Millimeter-Wave Applications

This work investigates the performance enhancement of the slotted planar inverted-F antenna (PIFA) using Eccosorb MCS absorber. In order to check the enhancement of the antenna performance, structure of the PIFA antenna with and without absorber has been analyzed. This antenna structure consists of two slots etched on the patch, which are placed at a height of 0.18λ0 from the substrate. We show that with the application of absorber, the radiation pattern can be transformed and produces the radiation beam in the desired direction. The proposed antenna is loaded with two layers of Eccosorb MCS absorber on the top of the substrate and with the other two layers below the substrate. Apart from providing radiation pattern in the desired direction, the antenna with absorber also provides wideband operation of 57.8 % bandwidth with high gain. The designs were first validated by simulations and then verified by measurement

Monopole Cavity Resonator Antenna with AMC and Superstrate for 5G WiMAX Applications

For 5G and WiMAX applications, a coplanar waveguide (CPW)-fed monopole antenna sandwiched between an artificial magnetic conductor (AMC) and a superstrate is investigated. Because traditional planar antennas have low gains, they are unsuitable for a wide range of applications. This paper explores scientific strategies for increasing radiation gain in low-gain antennas such as planar monopoles. We use AMC in conjunction with superstrate to achieve a high gain antenna, with the monopole antenna serving as the primary radiator. However, a superstate like this demands the use of materials with high permittivity, and most of such materials are not readily available on the market. Even if such materials are available, they are mostly expensive and unsuitable for commercial systems. We investigate various superstrates and elaborate on which way these superstrates can be used interchangeably without compromising antenna performance. In the end, we fabricate one of these three superstrates. The antenna, which also employs AMC in tandem with the superstrate, has an impedance bandwidth ranging from 3.2 GHz to 3.75 GHz with 7 dBi gain, so it can be a viable candidate for 5G and WiMAX application