scholarly journals A study of distilled water and zamzam water as dielecric dense patch antenna at 5 GHz

2019 ◽  
Vol 15 (2) ◽  
pp. 942
Author(s):  
N. H. Moktar ◽  
W. I. Roseli ◽  
M. T. Ali ◽  
R. A. Awang
Keyword(s):  
Patch Antenna ◽  
Return Loss ◽  
Center Frequency ◽  
Distilled Water ◽  
Electromagnetic Bandgap ◽  
Dense Patch ◽  
5 Ghz

<p>This paper was performed in order to study about distilled water and zamzam water which act as dielectric dense (DD) patch antenna at 5 Ghz applications. This antenna is proposed and designed using FR-4 substrate that sandwiched together to perform DD structure. The proposed antennas employ simple rectangular structure that fed with inset feeder surround by electromagnetic bandgap (EBG) structure.In order too enhance the gain, superstrate is applied on top of the antenna. This antenna offers a wideband return loss of more than -10dB between 4.41-5.52Ghz (around 22.2%) which can be applied in 5 Ghz applications. Details of DD water antenna of center frequency for 5 Ghz is presented and discussed.</p>

DESIGN AND ANALYSIS OF META-MATERIAL BASED WLAN ANTENNA

2016 ◽  
Vol 78 (4-3) ◽  
Author(s):  
Muhammad Aamir Afridi ◽  
Sadiq Ullah
Keyword(s):  
Patch Antenna ◽  
Return Loss ◽  
Ground Plane ◽  
Field Performance ◽  
Far Field ◽  
Electromagnetic Bandgap ◽  
Conventional Counterpart

In this paper, a 2.42 GHz micro-strip patch antenna is designed and analyzed using a conventional and a metamaterial (artificial) based Electromagnetic Bandgap (EBG) ground planes. The directivity, return loss and VSWR of the conventional 2.42 GHz patch antenna were found to be 5.23dB, -13.2dB, and 1.5 respectively. The proposed antenna then being mounted on a Mushroom-type EBG structures (artificial ground plane) produced better far-field performance as compared to conventional counterpart i.e. the return loss, directivity and VSWR were improved by 80.3%, 58.5% and 24.6%. The WLAN antenna was designed and tested on a miniaturized slotted EBG structure. The slotted EBG was 11.4 % compact as compared to the mushroom structure. The directivity, return loss and VSWR of the antenna using the slotted EBG are improved by be 51%, 31.8%, 15.4% respectively as compared to the patch conventional WLAN patch antenna. The antenna can be used for WLAN applications.

scholarly journals Single Patch Antenna with Multiple Feed

2019 ◽  
Vol 8 (9) ◽  
pp. 1743-1747
Keyword(s):  
Patch Antenna ◽  
Return Loss ◽  
S Parameter ◽  
5 Ghz

In this article single patch antenna with multiple feed lines is presented. The antenna is tested with four ports each separated at 90 degrees. The ports separated at 180 degrees have the same effects and same polarisation. The S-parameter of port 1 and port 2 are same due to horizontal polarisation then port 2 and port 4 are same due to vertical polarisation. The Port 1 and Port 3 resonates at frequency of 2.092GHz and 4.563GHz. It covers applications of UMTS (1.885GHz - 2.2 GHz) and C band (4 GHz – 8GHz). The Port 2 and Port 4 resonates at frequency of 1.66GHz and 5.155GHz. It covers applications of GPS (1.565GHz – 1.665GHz) and WLAN (5 GHz – 6 GHz). The return loss of the frequencies is less than10dB. The isolation among the ports are less than 15 dB.

scholarly journals Development of Band Reject Filter to Mitigate the effect of WLAN in UWB Receivers

2018 ◽  
Vol 4 (2) ◽  
pp. 1 ◽  
Author(s):  
Tamilselvan S ◽  
Oudaya coumar S
Keyword(s):  
Insertion Loss ◽  
Return Loss ◽  
Simulation Analysis ◽  
Filter Design ◽  
Stop Band ◽  
Notch Filter ◽  
Dual Band ◽  
Center Frequency ◽  
Ieee 802.11A ◽  
5 Ghz

This paper is about a dual band single notch filter to eliminate the effect of WLAN in UWB range. A novel square resonator with interdigital coupling at both sides plays a key role in this filter design. Design and EM Simulation of the dual band notch filter's characteristics are discussed in this paper. The proposed dual band notch filter produces excellent bandwidth from 2 GHz to 5 GHz and from 5.5 GHz to 8 GHz. The filter rejects the band of frequency from 5 GHz to 5.5 GHz which is very narrow band in which the filter eliminates the effect of WLAN (IEEE 802.11a). Also the out band performance of the proposed dual band filter meets the requirement of FCC's mask. The simulation analysis of the proposed filter is performed by electromagnetic solver. The return loss, insertion loss, group delay and phase of the filter are simulated and their performances are analyzed. The overall dimension of the filter is achieved to be 39mm x 3.2mm x 1.6mm on accounting the above features. The fractional bandwidth of the notch filter is calculated from the bandwidth and the center frequency and it is obtained about 115%. The S parameter results of the filter such as return loss (S11) in stop band is about -24 dB and insertion loss (S21) is about -28 dB is obtained.

scholarly journals Novel Quad-band Patch Antenna Design for Wireless Communications in 2.4, 5.2, 5.6 and 5.8 GHz Bands using Genetic Algorithm Optimization

2012 ◽  
Vol 1 (4) ◽  
pp. 466 ◽  
Author(s):  
J.M.J.W. Jayasinghe ◽  
D.N. Uduwawala
Keyword(s):  
Genetic Algorithm ◽  
Wireless Communications ◽  
Patch Antenna ◽  
Local Area ◽  
Coaxial Cable ◽  
Center Frequency ◽  
Fractional Bandwidth ◽  
Algorithm Optimization ◽  
Genetic Algorithm Optimization ◽  
5 Ghz

This paper presents the design of a novel quad band patch antenna for wireless communications in 2.4, 5.2, 5.6 and 5.8 GHz Bands. Antennas operating in these bands are available in various sizes and used in small hand-held devices as well as in wireless local area networks. A substrate with dielectric constant 3.2 and thickness 3.175mm is used for the design. The patch dimensions (40 30 mm) are similar to that of the conventional rectangular patch for the center frequency of the lowest frequency band which is 2.4 GHz. The antenna is fed by a 50? coaxial cable. Genetic algorithm optimization (GAO) is used to optimize the patch geometry and feed position. Simulations are carried out by using HFSS. The optimized antenna resonates at 2.4 GHz with fractional bandwidth of 4.1% and at 5 GHz bands with fractional bandwidth of 33.5%.

scholarly journals Broadband microstrip patch antenna at 28 GHz for 5G wireless applications

2021 ◽  
Vol 11 (3) ◽  
pp. 2238
Author(s):  
Kinde Anlay Fante ◽  
Mulugeta Tegegn Gemeda
Keyword(s):  
Patch Antenna ◽  
Return Loss ◽  
Substrate Material ◽  
Microstrip Patch Antenna ◽  
Radiation Efficiency ◽  
Center Frequency ◽  
Sidelobe Level ◽  
Wireless Applications ◽  
Microstrip Patch ◽  
Improved Performance

In this paper, a 28 GHz broadband microstrip patch antenna (MSPA) for 5G wireless applications is presented. The Rogers RT/Duroid5880 substrate material, with a dielectric constant of 2.2, the thickness of 0.3451 mm, and loss tangent of 0.0009, is used for the studied antenna to operate at 28 GHz center frequency. The proposed design of antenna is simulated by using CST studio suite. The simulation results highlight that the studied antenna has a return loss of -54.49 dB, a bandwidth of 1.062 GHz, a gain of 7.554 dBi. Besides, radiation efficiency and the sidelobe level of the proposed MSPA are 98% and 18.4 dB, respectively. As compared to previous MSPA designs reported in the recent scientific literature, the proposed rectangular MSPA has achieved significantly improved performance in terms of the bandwidth, beam-gain, return loss, sidelobe level, and radiation efficiency. Hence, it is a potential contender antenna type for emerging 5G wireless communication applications.

scholarly journals Design of Flexible 3.2 GHz Rectangular Microstrip Patch Antenna for S-Band Communication

2021 ◽  
Vol 21 (2) ◽  
pp. 140
Author(s):  
Teguh Praludi ◽  
Yana Taryana ◽  
Ken Paramayudha ◽  
Budi Prawara ◽  
Yusnita Rahayu ◽  
...  
Keyword(s):  
Patch Antenna ◽  
Return Loss ◽  
Flexible Substrate ◽  
Relative Dielectric Constant ◽  
Dielectric Substrate ◽  
Conformal Structure ◽  
Microstrip Patch Antenna ◽  
Center Frequency ◽  
Microstrip Patch ◽  
Rectangular Microstrip Patch Antenna

This paper presents the design, simulation, realization and analysis of flexible microstrip patch antenna for S-band applications. The proposed design also adopts the conformal structure by utilizing flexible substrate. Conformal or flexible structure allows the antenna to fit with any specified shape as desired. The antenna patch dimensions is 43 mm × 25 mm without SMA connector. The patch is etched on the flexible dielectric substrate, pyralux FR 9111, with a relative dielectric constant of εr = 3 and the thickness of substrate, h = 0.025 mm. The antenna is designed to resonate at 3.2 GHz. The return loss (RL) of the simulation is -35.80 dB at the center frequency of 3.2 GHz. The fabricated antenna prototype was measured at different bending angles scenarios including 0º, 30º, 60º, and 90º. The measurement of antenna prototype shows that the center frequency is shifted to the higher frequency of 3.29 GHz, compared to the simulation result. Among these scenarios, measurement at bending angle of 90º gives the best performance with RL = - 31.38 dB at 3.29 GHz, the bandwidth is 80 MHz, and the impedance ZA = 48.36 + j2.04 Ω. Despite a slight differences from simulation results, the designed antenna still performs well as expected.

scholarly journals Umbrella Monopole Antenna for 5G Applications

2021 ◽  
Vol 4 (1) ◽  
pp. 8
Author(s):  
Paulen Aulia Lutfia ◽  
Nurhayati Nurhayati ◽  
Samuel Prasad Jones Christydass
Keyword(s):  
Patch Antenna ◽  
Return Loss ◽  
Surface Current ◽  
Monopole Antenna ◽  
Wide Bandwidth ◽  
Feed Line ◽  
5 Ghz ◽  
24 Ghz ◽  
Microstrip Feed Line ◽  
Microstrip Feed

Umbrella Monopole Antenna (UMA) proposed in this paper for 5G application. We designed four models of UMA, i.e: UMA-A, UMA-B, UMA-C, and UMA-D. The antenna has a curvature in the patch as an umbrella shape with a feeding shape a microstrip feed line. Four variations of the patch antenna have been designed and get different performance in VSWR, surface current, and directivity. The proposed antenna has a wide bandwidth that operates 8 GHz – 30 GHz with VSWR <2 dB. The Increasing of directivity is reached for UMA-A, UMA-C, UMA-D, and UMA-B, i.e: 6.38 dBi, 7.97 dBi, 8,84dBi, and 9,15 dBi respectively at 24 GHz.  The maximum gain has been reached for UMA-B of 9.15. The lowest frequency that has a return loss of 10 dB has resulted for UMA-D in the frequency around 5 GHz. All of the UMA antennas can be applied for 5G mmwave applications at 24 GHz and 28 GHz.

Monopole Patch Antenna with Dual Band of 2.4 and 5 GHz Designed for Wireless LAN Applications

2013 ◽  
Vol 421 ◽  
pp. 173-176
Author(s):  
Jyh Liang Wang ◽  
Tsang Yen Hsieh ◽  
Chuan Chou Hwang ◽  
Mei Hui Wang
Keyword(s):  
Optimum Design ◽  
Patch Antenna ◽  
Wireless Lan ◽  
Return Loss ◽  
Monopole Antenna ◽  
Dual Band ◽  
5 Ghz

A compact prototype of dual band monopole antenna has been fabricated on PCB with small overall size of 36.6 mm×47 mm. By the trial of simulation to tune the dimensions of PCB, an optimum design of antenna can be obtained. Dual resonances excited in 2.4 and 5 GHz bands. For return loss more than 9.6 dB, the achieved bandwidths are 2.41 to 2.77 GHz in 2.4 GHz band and 5.11 to 5.83 GHz in 5 GHz band. The return loss ( ) can keep larger than 9.6dB within the bands of 2.4 and 5 GHz.

Broadband high gain cavity resonator antenna using planar electromagnetic bandgap (EBG) superstrate

2022 ◽  
pp. 1-12
Author(s):  
Soumik Dey ◽  
Sukomal Dey
Keyword(s):  
Patch Antenna ◽  
Impedance Matching ◽  
Cavity Resonator ◽  
High Gain ◽  
Center Frequency ◽  
Electromagnetic Bandgap ◽  
Gain Enhancement ◽  
Rectangular Patch ◽  
Fabry Perot ◽  
Rectangular Microstrip Antenna

Abstract This paper presents a broadband miniaturized Fabry–Perot cavity resonator antenna (CRA) made of novel electromagnetic bandgap (EBG) superstrate as partially reflecting surface (PRS) and reactive impedance surface (RIS) backed rectangular patch antenna. To the best of the authors' knowledge, the proposed EBG exhibits the highest stopband bandwidth (BW) with a bandgap existing between 7.37 and 12.4 GHz (50.9%). Frequency-selective property of the EBG is utilized under plane wave incidence to demonstrate it as PRS superstrate in CRA antenna. The cavity is excited with a rectangular microstrip antenna which is made of two dielectric substrates with an additional RIS layer sandwiched between them. The RIS provides wideband impedance matching of the primary feed antenna. A 7 × 7 array of the EBG superstrate is loaded over the patch antenna having an overall lateral dimension of only 45 × 45 mm2 or 1.62 λ0 × 1.62 λ0 where λ0 is the free space wavelength at the center frequency of 10.8 GHz. The proposed Fabry–Perot CRA (FP-CRA) achieves gain enhancement of 6.59 dB as compared with the reference antenna and has a 10 dB return loss BW of 23.79% from 10.07 to 12.79 GHz. A prototype of the FP-CRA is fabricated and experimentally tested with single and dual layers of EBG superstrate. Measured results show BWs of 21.5 and 24.8% for the two cases with peak realized gain of 12.05 and 14.3 dBi, respectively. Later a four-element antenna array with corporate feeding is designed as the primary feed of the CRA. The simulation result shows a flat gain of >13 dBi with gain variation <1.2 dB over the impedance BW of 13.2%.

RFID Reader Antenna Design for Groceries Auto Payment System

2015 ◽  
Vol 781 ◽  
pp. 28-31
Author(s):  
Amira Abd Rohim ◽  
Muhammad Ramlee Kamarudin ◽  
M.T. Ali
Keyword(s):  
Patch Antenna ◽  
Return Loss ◽  
Microstrip Patch Antenna ◽  
Antenna Design ◽  
Center Frequency ◽  
Microstrip Patch ◽  
Rfid Reader ◽  
Reader Antenna ◽  
Good Agreement ◽  
Uhf Band

A microstrip patch antenna for RFID reader is presented in this paper. It operates within the RFID international UHF band (902-928MHz) which the center frequency is at 915MHz with 15dB of return loss value. The frequency ranges also cover the RFID UHF band for Malaysia (912-923MHz). The main objective for this antenna is to implement it in the RFID reader for an auto payment application. Some results have been shown between CST Microwave Studio, HFSS and the measurement. Good agreement is achieved for the used in the RFID UHF band.

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