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The meander line Defected Waveguide Structure (DWS) is studied in Ultrawideband (UWB) frequency range. Four different meander line configurations of DWS are designed by using the CST Microwave software. The simple basic square is first designed with gap separation in between. The straight connecting strip is then designed between the squares. The straight connecting strip is folded by using meander...
A multiband planar printed monopole antenna with Minkowski and Lollipop defected parasitic structure (DPS) for wireless communication system is proposed. The proposed antenna can create and work effectively to covers triband resonance frequencies at 2.4, 3.6 and 5.8 GHz within WLAN/WiMAX range in wireless communication system application. The Minkowski and Lollipop DPS has been place in front of and...
This paper investigated the effect of two main parameters of patch antenna by using partial ground techniques and addition of modified double W-shaped split ring resonator (MDW-SRR). The results show that these two techniques can be improving the performance of the return loss and bandwidth result of the patch antenna. The proposed antenna covers the frequency range of 1821.1 MHz to 3117.1 MHz with...
This paper has presents a novel design of compact monopole antenna fed by a coplanar waveguide (CPW) for dual-band applications that targeted to achieve the gain more than 1 dB. The proposed compact monopole antenna has been design only 20 × 35 mm in size. The monopole structure with two inverted U-shaped, L-shaped lateral and coplanar-way (CPW) feed line driven by 50 Ω on one side are designed with...
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...
A dual-band antenna by use 2 × 2 patch array with L-slot is presented for simultaneously worldwide interoperability for Microwave Access (WiMAX) and wireless local area network (WLAN) application. This 2 × 2 Patch Array with L Slot Antenna is targeted to achieve the gain more than 2 dB for both frequencies by using array technique design. The antenna design structure has been modified by adding a...
This paper investigates the effect of the complementary, split ring resonator (CSRR) structure on a bow-tie patch antenna. This CSRR structure potentially reduces the size of the patch antenna by shifted to the lower frequency. This proposed antenna has been designed for wireless LAN communication at 2.4 GHz. Firstly, the work is designing the antenna (without and with CSRR) using CST Microwave Studio...
In this paper, broadband inverted suspended linear polarized antennas with operating frequency at 2.4GHz for Wireless Local Area Network (WLAN) application are designed. Various shapes of slot are added on the inverted suspended rectangular patch to investigate the effect of the antenna performance. The antennas are designed by using L-probe amendment with inverted suspended rectangular patch, where...
The antenna performance in achieving better return loss, gain, and efficiency can be potentially worked out by adding Split Ring Resonator (SRR) slot to the antenna structure. Thus, this paper investigates the effect of SRR slot on a monopole antenna at wideband frequency ranged from 2.9GHz to 6.6GHz. All antenna designs involved in this paper is simulated using Computer Simulation Technology (CST)...
In this paper, a multi-band planar printed monopole antenna for wireless communication system is presented. The antenna has been designed based on meander lines monopole printed elements and the rectangular ground structure. The each element of meander lines is designed with a half wavelength to radiate at a frequency of 3.6 and 5.8 GHz for Wireless Local Area Network (WLAN) application. The 50 ohm...
This paper investigates the effect of SRR slot on a monopole antenna with hybrid substrates. The antenna has been investigated by varying the position and the number of SRR slot. The antenna is designed by using a hybrid material substrate constructed by material FR4 and RO3006. The dielectric constant and thickness of both materials are 4.4 and 1.6mm respectively for the former as well as 6.15 and...
This work investigate the effect of the defected parasitic element and ring slot on the ground plane at the fork-like shape monopole antenna. Firstly, the basic fork-like shape antenna with a slot and parasitic patch had been designed in the CST Microwave Studio. Then, this antenna had been improved by embedded some defected structure in stage by stage at the ground plane - Design B, Design C, and...
A broadband dual-polarized antenna operating at 2.4GHz for Wireless Local Area Network (WLAN) application is proposed. The proposed antenna is designed with two different polarizations, which are right-handed circular polarization (RHCP) and left-handed circular polarization (LHCP). This broadband dual-polarized antenna is designed with method of inverted suspended rectangular microstrip patch antenna...
This paper represents design of 3GHz hairpin filter with Defected Ground Structure (DGS) for Microwave Imaging application by using Advanced Design System (ADS) software and FR4 substrate. Hairpin filter is one of the most popular microwave filters because of its compactness. Thus, to enhance its performance detected ground structure is implemented to the filter. The filter is designed to operate...
This paper present the review on the wireless system specifically with Multiple Input Multiple Output (MIMO) technique. This is due to the advantage of MIMO system that able to enhanced the overall wireless channel capacity. Besides system performances, the size and mobility of the communication devices are also contributed the successfulness of proposed wireless communication system. The compact...
A dual band monopole antenna for Wireless local area network (WLAN) communication system is presented. The antenna has been designed with two meander branch monopole elements and the rectangular ground structure with simple configuration. The first branch is optimized by using a quarter wavelength of desired resonance frequency at 2.45 GHz. Meanwhile, additional branch of second branch brings resonance...
In this paper, a broadband circular polarized antenna with operating frequency at 2.4GHz is proposed. The antennas are designed by using L-probe amendment with inverted patch by using suspended rectangular microstrip antenna (MSA) technique to improve the bandwidth until more than 200MHz. The characteristics of the antenna are analyzed, so that the antenna meets broadband operations at operating frequency...
The design FSS structure consists of square Frequency Selective Surface (FSS) structures placed on the FR4 and glass. The circular and square slot is added on the FSS to design and simulate by using the CST Microwave Studio software for 2.4 GHz and 5.2GHz based on industrial, scientific and medical bands (ISM) standard. The reflection (S11) and transmission (S21) of the design FSS structure is analyzed...
A meandered dipole Yagi-Uda antenna with parabolic reflector for 1.575 GHz of the Global Positioning System (GPS) application is presented. The intention of this work is to attain the consequence for optimum presentations of the antenna established to gain, size and directivity. This antenna radiates at the frequency between 1.52 GHz and 1.88 GHz. The gain for this antenna is 4.521 dB at 1.575 GHz...
Microwave filter is a kind of device, which can separate microwave signals with different frequencies. The filter has been utilized widely in many fields such as communication, signal processing, radar and other related fields. An X-band filter using parallel coupled-line technique with DGS is designed. The purpose of this paper is to observe the performance of band-pass filter with defected ground...
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