Multi-band Antenna with CSRR Loaded Ground Plane and Stubs Incorporated Patch for WiMAX/WLAN Applications

2021 ◽  
Vol 30 (1) ◽  
pp. 35-52
Author(s):  
Palanivel Manikandan ◽  
Pothiraj Sivakumar ◽  
Nagarajan Rajini
Keyword(s):  
Ground Plane ◽  
Local Area ◽  
Simulation Software ◽  
Antenna Design ◽  
Ring Resonators ◽  
Field Patterns ◽  
Resonance Frequencies ◽  
Single Structure ◽  
Band Spectra ◽  
Multi Band

This paper proposes a novel compact, single structure, multi-band antenna along with tested results for wireless local area networks (WLAN) and Worldwide Interoperability for Microwave Access (WiMAX) applications. In this work, modified complementary split-ring resonators (CSRR) were incorporated in the ground layer of the patch to achieve permeable bands to accommodate multi-resonance frequencies in a single device. The proposed antenna design supported the upgraded performance and led to desirable size reduction. Open stubs were incorporated at the edges of the triangle batch to get the improved reflection coefficient responses. It resulted in specific band spectra of 2.4 / 3.4 / 5.1 / 5.8GHz for WLAN/WiMAX applications. For constructive antenna design, CST microwave studio simulation software was utilized. S11 parameter was observed as -24dB at 2.4GHZ, -32dB at 3.4GHz. -15dB at 5.1GHz and -22dB at 5.8GHz bands. Field patterns of each band were observed. The parametric study of the arrangement and positioning of the CSRR unit cell was examined. Excellent consistency between the experimental and simulated results revealed the capability of the projected structure to perform with improved gain.

Multi-band terahertz metasurface absorber

2017 ◽  
Vol 31 (36) ◽  
pp. 1750354 ◽  
Author(s):  
Xuying Wang ◽  
Qingmin Wang ◽  
Guoyan Dong ◽  
Yanan Hao ◽  
Ming Lei ◽  
...  
Keyword(s):  
Incident Angle ◽  
Ground Plane ◽  
Azimuthal Angle ◽  
Ring Resonators ◽  
Perfect Absorber ◽  
Absorption Mechanism ◽  
Practical Applications ◽  
Dielectric Spacer ◽  
Resonance Frequencies ◽  
Multi Band

A terahertz metasurface perfect absorber with multi-band performance is demonstrated. The absorber is composed of a ground plane and four split-ring resonators (SRRs) with different dimensions, separated by a dielectric spacer. The numerical simulation results illustrate that the proposed absorber has four distinct absorption peaks at resonance frequencies of 4.24, 5.66, 7.22, and 8.97 THz, with absorption rates of 96.8%, 99.3%, 97.3%, and 99.9%, respectively. Moreover, the corresponding full width at half-maximum (FWHM) values are about 0.27, 0.35, 0.32, and 0.42 THz, respectively, which are much broader than those of previously reported absorbers. Besides, the calculated magnetic field distributions allow us to understand the absorption mechanism in detail. The effects of incident angle and azimuthal angle on the absorber are also investigated. The results show that the proposed absorber is partially sensitive to the incident angle, which makes this design promising for practical applications in terahertz imagers and detectors.

scholarly journals Design and Simulation “Ha”-Slot Patch Array Microstrip Antenna for WLAN 2.4 GHz

2021 ◽  
Vol 58 (S) ◽  
pp. 109-117
Author(s):  
Sotyohadi Sotyohadi ◽  
I Komang Somawirata ◽  
Kartiko Ardi Widodo ◽  
Son Thanh Phung ◽  
Ivar Zekker
Keyword(s):  
Microstrip Antenna ◽  
Minimum Distance ◽  
Return Loss ◽  
Wireless Local Area Network ◽  
Local Area Network ◽  
Computational Simulation ◽  
Local Area ◽  
Simulation Software ◽  
Antenna Design ◽  
Area Network

This paper presents a linear 1 × 2 “Ha ( )”–slot patch array microstrip antenna. The proposed design of an array microstrip antenna is intended for Wireless Local Area Network (WLAN) 2.4 GHz devices. From the previous research concerning the single patch “Ha ( )”–slot microstrip antenna, the gain that can be achieved is 5.77 dBi in simulation. This value is considered too small for an antenna to accommodate WLAN devices if compare to a Hertzian antenna. To enhance the gain of microstrip antenna, some methods can be considered using linear 1 × 2 patch array and T-Junction power divider circuit to have matching antenna impedance. The distances between two patches are one of the important steps to be considered in designing the patch array microstrip antenna. Thus, the minimum distance between the patch elements are calculated should be greater than λ/2 of the resonance frequency antenna. If the distance less than λ/2 electromagnetically coupled will occur, vice versa when it is to widen the dimension of the antenna will less efficient. Epoxy substrate Flame Resistant 4 (FR4) with dielectric constant 4.3 is used as the platform designed for the array antenna and it is analyzed using simulation software Computational Simulation Technology (CST) studio suite by which return loss, Voltage Standing Wave Ratio (VSWR), and gain are calculated. The simulation result showed that the designed antenna achieve return loss (S11) -25.363 dB with VSWR 1.1 at the frequency 2.4 GHz, and the gain obtained from simulation is 8.96 dBi, which is greater than 64.4 % if compared to the previous one. The proposed antenna design shows that increasing the number of patches in the array can technically improve the gain of a microstrip antenna, which can cover a wider area if applied to WLAN devices

scholarly journals Microstrip antenna with DGS based on CSRR array for WiMAX applications

2019 ◽  
Vol 9 (1) ◽  
pp. 157
Author(s):  
Ajay V. G. ◽  
Parvathy A. R. ◽  
Thomaskutty Mathew
Keyword(s):  
Resonant Frequency ◽  
Microstrip Antenna ◽  
Patch Size ◽  
Return Loss ◽  
Ground Plane ◽  
Simulation Software ◽  
Ring Resonators ◽  
Split Ring ◽  
Split Ring Resonators ◽  
Novel Method

<span lang="EN-US">This paper reports a novel method for designing a miniaturized microstrip antenna with DGS based on CSRR array which operates in the frequency of 2.6GHz for low band WiMAX application. The proposed antenna is designed using ANSYS HFSS simulation software. The antenna with optimized parameters is fabricated using FR-4 substrate of thickness 1.6 mm. The simulated and measured performances of the antenna in terms of return loss, directivity and radiation patterns are presented in this work. When Complimentary Split Ring Resonators (CSRRs) array are placed on the ground plane, the resonant frequency is shifted  to a lower value and patch size is reduced .The measurements were taken and compared with the simulated results. The performance characteristics obtained from the measurements show that the proposed antenna is suited for WiMAX application at 2.6GHz.</span>

Design of a Quad-Band Monopole Antenna with Independent Frequency Control

2019 ◽  
Vol 28 (06) ◽  
pp. 1950101
Author(s):  
Wang Ren ◽  
Peng-Hong Wang
Keyword(s):  
Wireless Local Area Network ◽  
Local Area Network ◽  
Frequency Control ◽  
Coplanar Waveguide ◽  
Ground Plane ◽  
Local Area ◽  
Monopole Antenna ◽  
Ring Resonators ◽  
Area Network ◽  
Global Positioning

A coplanar waveguide (CPW)-fed I-shaped monopole antenna with independent frequency control characteristic is presented for simultaneously satisfying the global positioning system (GPS), wireless local area network (WLAN), and worldwide interoperability for microwave access (WiMAX) applications. It is printed on an FR4 substrate with a single-layered metallic structure and the overall dimensions are [Formula: see text][Formula: see text]mm3. The proposed antenna consists of an I-shaped monopole, a pair of split-ring resonators (SRRs), and a coplanar ground plane. The unique advantage of this study is that the four frequency bands are generated individually by different radiating elements. That is, each of them can be controlled independently with little interference from others, which brings added convenience to the antenna design, optimization and debugging processes. Simulated and measured results both demonstrate that it can cover the 1.575[Formula: see text]GHz GPS (1.57–1.59[Formula: see text]GHz); 2.4/5.2/5.8[Formula: see text]GHz WLAN (2.4–2.485, 5.15–5.35 and 5.725–5.825[Formula: see text]GHz) and 3.5/5.5[Formula: see text]GHz WiMAX (3.40–3.60 and 5.25–5.85[Formula: see text]GHz) applications with satisfactory radiation patterns and acceptable gains.

Compact multi-band printed antenna with multi-triangular ground plane for WLAN/WiMAX/RFID applications

2014 ◽  
Vol 8 (2) ◽  
pp. 277-281 ◽  
Author(s):  
Tang Yang ◽  
Gao Wen ◽  
Gao Jinsong ◽  
Feng Xiaoguo
Keyword(s):  
Wireless Local Area Network ◽  
Local Area Network ◽  
Coplanar Waveguide ◽  
Ground Plane ◽  
Local Area ◽  
Impedance Bandwidth ◽  
Area Network ◽  
Printed Antenna ◽  
Rfid Applications ◽  
Multi Band

In this paper a novel compact multi-band printed coplanar waveguide (CPW)-feed antenna for wireless local area network (WLAN)/WiMAX/RFID applications is proposed. The proposed antenna is composed of a multi-triangular structure as metal ground plane and the radiation element with four different branches, both of the structures are printed on the same side of a substrate and the antenna is fed by a CPW. By carefully tuning the locations and the sizes of these four branches, the antenna can yield three different resonating frequencies to cover the desired bands for WLAN/WiMAX/RFID applications. The simulated and measured results demonstrate that the proposed antenna has the impedance bandwidth (for return loss less than −10 dB) of 700 MHz (2.2−2.9 GHz), 540 MHz (3.16–3.7 GHz), and 850 MHz (5.05–5.9 GHz), respectively, which can cover the WLAN 2.4/5.8 GHz bands, the WiMAX 2.5/3.5 GHz bands, and the RFID 2.45/5.8 GHz bands.

Novel Monopole Microstrip Antennas for GPS, WiMAX and WLAN Applications

2019 ◽  
Vol 29 (03) ◽  
pp. 2050050
Author(s):  
Biplab Bag ◽  
Priyabrata Biswas ◽  
Sushanta Biswas ◽  
Partha Pratim Sarkar ◽  
Dibyendu Ghoshal
Keyword(s):  
Wireless Local Area Network ◽  
Local Area Network ◽  
Low Cost ◽  
Ground Plane ◽  
Local Area ◽  
Microstrip Antennas ◽  
Simulation Software ◽  
Center Frequency ◽  
Area Network ◽  
Parametric Analyses

In this paper, two novel low-profile monopole antennas are presented for simultaneous operation in GPS (Global Positioning System), WLAN (Wireless Local Area Network) and WiMAX (Worldwide Interoperability for Microwave Access) applications. The antennas constitute of a T-shaped microstrip feed line and directly coupled strips to generate multiple bands. The proposed antennas are printed on one side of a low-cost FR4 epoxy substrate and partial ground plane (metal plane is etched partially) are fabricated on the other side of the substrate. The overall dimension of antenna is [Formula: see text][Formula: see text]mm3. Measured results show that the antenna1 (quad band) covers the four distinct operating bands of 320[Formula: see text]MHz (2.17–2.49[Formula: see text]GHz), 190[Formula: see text]MHz (3.31–3.50[Formula: see text]GHz), 270[Formula: see text]MHz (5.18–5.45[Formula: see text]GHz) and 700[Formula: see text]MHz (5.5–6.20[Formula: see text]GHz). Antenna2 (penta band) covers the frequency bands of 1.29–1.98[Formula: see text]GHz (center frequency 1.61[Formula: see text]GHz), 2.78–2.91[Formula: see text]GHz (center frequency 2.83[Formula: see text]GHz), 3.59–3.94[Formula: see text]GHz (center frequency 3.75[Formula: see text]GHz), 5.15–5.33[Formula: see text]GHz (center frequency 5.24[Formula: see text]GHz) and 5.39–6.06[Formula: see text]GHz (center frequency 5.56[Formula: see text]GHz). The detail antenna design and parametric analyses are discussed in steps. The characteristic of radiation pattern and gain are measured. The measured and simulated results are in good agreement. The antennas are designed using a simulation software HFSS v.15.

scholarly journals A Polarization Independent Quasi-TEM Metamaterial Absorber for X and Ku Band Sensing Applications

Sensors ◽  
2018 ◽  
Vol 18 (12) ◽  
pp. 4209 ◽  
Author(s):  
Ahasanul Hoque ◽  
Mohammad Tariqul Islam ◽  
Ali Almutairi ◽  
Touhidul Alam ◽  
Mandeep Jit Singh ◽  
...  
Keyword(s):  
Satellite Communication ◽  
Wave Spectrum ◽  
Metamaterial Absorber ◽  
Simulation Software ◽  
Ring Resonators ◽  
Dual Band ◽  
Absorption Bands ◽  
Sensing Applications ◽  
Resonance Frequencies ◽  
Ku Band

In this paper, a dual-band metamaterial absorber (MMA) ring with a mirror reflexed C-shape is introduced for X and Ku band sensing applications. The proposed metamaterial consists of two square ring resonators and a mirror reflexed C-shape, which reveals two distinctive absorption bands in the electromagnetic wave spectrum. The mechanism of the two-band absorber particularly demonstrates two resonance frequencies and absorption was analyzed using a quasi-TEM field distribution. The absorption can be tunable by changing the size of the metallic ring in the frequency spectrum. Design and analysis of the proposed meta-absorber was performed using the finite-integration technique (FIT)-based CST microwave studio simulation software. Two specific absorption peaks value of 99.6% and 99.14% are achieved at 13.78 GHz and 15.3 GHz, respectively. The absorption results have been measured and compared with computational results. The proposed dual-band absorber has potential applications in sensing techniques for satellite communication and radar systems.

Tri-Band CPW-Fed Stub-Loaded Slot Antenna Design for WLAN/WiMAX Applications

Frequenz ◽  
2016 ◽  
Vol 70 (11-12) ◽  
Author(s):  
Jianxing Li ◽  
Jianying Guo ◽  
Bin He ◽  
Anxue Zhang ◽  
Qing Huo Liu
Keyword(s):  
Fundamental Mode ◽  
Return Loss ◽  
Wireless Local Area Network ◽  
Local Area Network ◽  
Ground Plane ◽  
Local Area ◽  
Antenna Design ◽  
Slot Antenna ◽  
Area Network ◽  
Resonant Modes

AbstractA novel uniplanar CPW-fed tri-band stub-loaded slot antenna is proposed for wireless local area network (WLAN) and worldwide interoperability for microwave access (WiMAX) applications. Dual resonant modes were effectively excited in the upper band by using two identical pairs of slot stubs and parasitic slots symmetrically along the arms of a traditional CPW-fed slot dipole, achieving a much wider bandwidth. The middle band was realized by the fundamental mode of the slot dipole. To obtain the lower band, two identical inverted-L-shaped open-ended slots were symmetrically etched in the ground plane. A prototype was fabricated and measured, showing that tri-band operation with 10-dB return loss bandwidths of 150 MHz from 2.375 to 2.525 GHz, 725 MHz from 3.075 to 3.8 GHz, and 1.9 GHz from 5.0 to 6.9 GHz has been achieved. Details of the antenna design as well as the measured and simulated results are presented and discussed.

scholarly journals Printed Wide-Slot Antenna Design with Bandwidth and Gain Enhancement on Low-Cost Substrate

2014 ◽  
Vol 2014 ◽  
pp. 1-10 ◽  
Author(s):  
M. Samsuzzaman ◽  
M. T. Islam ◽  
J. S. Mandeep ◽  
N. Misran
Keyword(s):  
Microstrip Line ◽  
Low Cost ◽  
Ground Plane ◽  
Simulation Software ◽  
Antenna Design ◽  
Slot Antenna ◽  
Design Parameters ◽  
Impedance Bandwidth ◽  
Strip Line ◽  
Gain Enhancement

This paper presents a printed wide-slot antenna design and prototyping on available low-cost polymer resin composite material fed by a microstrip line with a rotated square slot for bandwidth enhancement and defected ground structure for gain enhancement. An I-shaped microstrip line is used to excite the square slot. The rotated square slot is embedded in the middle of the ground plane, and its diagonal points are implanted in the middle of the strip line and ground plane. To increase the gain, four L-shaped slots are etched in the ground plane. The measured results show that the proposed structure retains a wide impedance bandwidth of 88.07%, which is 20% better than the reference antenna. The average gain is also increased, which is about 4.17 dBi with a stable radiation pattern in the entire operating band. Moreover, radiation efficiency, input impedance, current distribution, axial ratio, and parametric studies of S11 for different design parameters are also investigated using the finite element method-based simulation software HFSS.

scholarly journals Design of a Multi-Band Microstrip Textile Patch Antenna for LTE and 5G Services with the CRO-SL Ensemble

2020 ◽  
Vol 10 (3) ◽  
pp. 1168 ◽  
Author(s):  
Carlos Camacho-Gomez ◽  
Rocio Sanchez-Montero ◽  
Diego Martínez-Villanueva ◽  
Pablo-Luís López-Espí ◽  
Sancho Salcedo-Sanz
Keyword(s):  
High Frequency ◽  
Fitness Function ◽  
Ground Plane ◽  
Surface Current ◽  
Population Based ◽  
Simulation Software ◽  
Communication Services ◽  
Microstrip Patch ◽  
Textile Antenna ◽  
Multi Band

A textile multi-band antenna for LTE and 5G communication services, composed by a rectangular microstrip patch, two concentric annular slots and a U-Shaped slot, is considered in this paper. In the ground plane, three sleeved meanders have been introduced to modify the surface current distribution, leading to a bandwidth improvement. The U-Shaped slot, the dual circular slots, and the meanders shape have been optimized by means of the Coral Reefs Optimization with Substrate Layer algorithm (CRO-SL). This population-based meta-heuristic approach is a kind of ensemble algorithm for optimization (multi-method), in which different search operators are considered within the algorithm. We show that the CRO-SL is able to obtain a robust multi-band textile antenna, including LTE and 5G frequency bands. For the optimization process, the CRO-SL is guided by means of a fitness function obtained after the antenna simulation by a specific simulation software for electromagnetic analysis in the high frequency range.

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