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A design of modified H-shaped patch antenna with slots and modified ground plane is presented in this paper. H-patch configuration with modified ground plane is proposed to increase the directivity, bandwidth and reflection coefficient of antenna. The H-shape patch antenna is feed by transmission line. By giving extra slots on top of the patch, it can increase the reflection coefficient of antenna...
In this work, a novel coplanar waveguide (CPW) fed rectangular patch antenna embedded with four L-shaped slots for WiMAX application was proposed. This antenna is designed by using an FR4 epoxy board with dielectric constant, εr = 4.4, tangent loss, tan δ = 0.019 and the thickness of substrate, h = 1.6mm. There are two methods applied in this antenna to improve the characteristic of the antenna. The...
This paper presents an equilateral triangular microstrip antenna with spur lines. The proposed antenna, comprising a triangular planar patch element embedded with two spur line slots. The simulation and fabrication process are performed to understand the characteristics of the proposed antenna. The simulation result is compared with the fabricated antenna. The targeting frequency of this antenna is...
This paper presents the parametric study on the Minkowski shaped antenna with the rectangular parasitic patch elements. This patch antenna consists four parts — patch, feed line, ground plane and parasitic elements. The rectangular parasitic patch elements are located at the bottom of the Minkowski shaped patch. The parametric study of different patch sizes (Design 2A, Design 2B, Design 2C, Design...
In this work, a modified Minkowski patch antenna had been designed for 2.4 GHz of resonant frequency, fr for wireless local area network (WLAN) application. The proposed complimentary structure of quadruple P-spiral split ring resonator (QPS-SRR) into the patch antenna had been increasing the gain performance. Other parameters that had been considered in this work are return loss, bandwidth, radiation...
In this paper, the study of shell and body tissue simulating liquid (BTSL) thickness and its effects on capsule antenna performance at 2.45 GHz were presented. Two simulation setups which consists two different sets of shell and BTSL position near the capsule antenna were used in the simulation process. The reflection coefficient, directivity, gain and efficiency performance in those simulation setups...
In this paper, the study of shell and body tissue simulating liquid (BTSL) effects on compact peanut-shape antenna performance that operate at frequency 2.45 GHz are presented. Two simulation setups which consist of eight different types of simulation were used in the simulation process. Reflection coefficient, bandwidth, radiation pattern and directivity in those simulation setups are determined...
In this paper, a compact printed antennas with a band-stop characteristic for ultra-wideband application are proposed. The dual-oval shape is introduced to reduce the size of the dimension, thus make it more compact. In order to increase the impedance bandwidth of the proposed antenna, a partial ground and circular slot are used. By attaching an inverted Y-shaped open-circuited stub in the circular...
Due to their popularity, antennas implemented on conductive textiles have been widely investigated. Prototypes of full-textile antennas are also usually pre-investigated using conductive foils, which is more homogeneous and provides better mechanical consistency. However, in today's practical applications, various electronic devices are still implemented on low-cost FR4 boards, popular in printed...
This paper describes the design and simulation of Sierpinski Carpet Fractal Planar Inverted F Antenna (PIFA) for WLAN and HiperLAN applications. Simulation of antenna is carried out using CST software; on a FR4 board with a substrate thickness of 1.6 mm and relative permittivity of 4.7. The antenna achieved satisfactory 10-dB impedance bandwidths, between the frequencies of 2341-2812 MHz and 5360-6154...
A high gain and high directive microstrip patch antenna formed from Barium Strontium Titanate (BST) ceramics and covered with dielectric substrate has been investigated. The Computer Simulation Technology (CST) Microwave Studio is used for the simulation. We measured the gain and directivity of antennas with and without a superstrate and found that the gain of a single BST array antenna with a superstrate...
A circular profile microstrip antenna and its related structural dimensions meant for 5850-7075 MHz Malaysia HAPS operating band are investigated here. Appearing by three layers and having layer three surface copper re-shaped on a microwave laminate. It was by varying the middle air gap spacing's height covering layer two regions. At the same time, this conditions will permit copper at layer three...
A circular profile micro strip antenna and its related structural dimensions meant for 5850-7075 MHz Malaysia HAPS operating band are investigated here. Appearing by three layers and having layer three surface copper re-shaped on a microwave laminate. It was by varying the middle air gap spacing's height covering layer two regions. At the same time, this conditions will permit copper at layer three...
A circularly microstrip antenna (CMSA) with its related geometry intended for 5850 -7075 MHz Malaysia HAPS operating band are presented here. Construction are made into three layers having layer three surface copper re-formed on a microwave laminate (εr = 2.2) and by varying its middle air gap spacing's height. At the same time, these copper at layer three will be electrically and magnetically fed...
An investigative design of a circular microstrip antenna (CMSA) and its related geometry intended for 5850–7075 MHz Malaysia HAPS operating band is presented. The structure consists of three layers, with the radiator at the top (layer three), a feed on the middle layer (layer two) and finally a grounding copper plate at the bottom (layer one). A commercial microwave laminate with permittivity ∊r =...
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