scholarly journals A Defected Structure Shaped CPW-Fed Wideband Microstrip Antenna for Wireless Applications

2016 ◽  
Vol 2016 ◽  
pp. 1-7 ◽  
Author(s):  
Puneet Khanna ◽  
Amar Sharma ◽  
Kshitij Shinghal ◽  
Arun Kumar
Keyword(s):  
Patch Antenna ◽  
High Frequency ◽  
Microstrip Antenna ◽  
Microstrip Line ◽  
Coplanar Waveguide ◽  
Network Analyzer ◽  
Large Space ◽  
Wireless Applications ◽  
High Frequency Structure Simulator ◽  
Good Agreement

A coplanar waveguide- (CPW-) fed compact wideband defected structure shaped microstrip antenna is proposed for wireless applications. Defected structure is produced by cutting theUshape antenna in the form of two-sided T shape. The proposed antenna consists of two-sidedTshape strip as compared to usual monopole patch antenna for minimizing the height of the antenna. The large space around the radiator is fully utilized as the ground is on the same plane as of radiator. Microstrip line feed is used to excite the proposed antenna placed on an FR4 substrate (dielectric constantεr=4.4). The antenna is practically fabricated and simulated. Simulated results of the proposed antenna have been obtained by using Ansoft High-Frequency Structure Simulator (HFSS) software. These results are compared with measured results by using network analyzer. Measured result shows good agreement with the simulated results. It is observed that the proposed antenna shows a wideband from 2.96 GHz to 7.95 GHz with three bands atf1=3.23 GHz,f2=4.93 GHz, andf3=7.04 GHz.

Optimum Patch Dimension Ratio of T-Shaped Microstrip Antenna

2013 ◽  
Vol 684 ◽  
pp. 303-306
Author(s):  
Eugene Rhee ◽  
Ji Hoon Lee
Keyword(s):  
High Frequency ◽  
Microstrip Antenna ◽  
Microstrip Line ◽  
Return Loss ◽  
Impedance Matching ◽  
Feeding Method ◽  
High Frequency Structure Simulator ◽  
Feeding Methods ◽  
Coaxial Probe ◽  
Dimension Ratio

There are various feeding methods of antenna like as coaxial probe, coupling, parasitic elements, and impedance matching. This paper adopted the microstrip line method as the feeding method of the antenna. The high frequency structure simulator is used to analyze the characteristics of the T-shaped microstrip antenna with various patch dimensions. In comparison with the basic microstrip antenna, this proposed T-shaped microstrip antenna with 40.38 % of patch dimensions has the optimum characteristics of resonant frequency, return loss, and radiation pattern at 2.0 GHz band.

Design and Analysis of EBG Antenna for Wi-Fi, LTE, and WLAN Applications

2020 ◽  
Vol 35 (9) ◽  
pp. 1030-1036
Author(s):  
Pronami Bora ◽  
Pokkunuri Pardhasaradhi ◽  
Boddapati Madhav
Keyword(s):  
Patch Antenna ◽  
High Frequency ◽  
Parametric Analysis ◽  
Coplanar Waveguide ◽  
Substrate Material ◽  
Maximum Efficiency ◽  
Electromagnetic Band Gap ◽  
High Frequency Structure Simulator ◽  
Antenna Performance ◽  
Simulation Results

A non-planar electromagnetic band gap (EBG) structured antenna is proposed in this paper for wireless communication applications. The proposed design consists of coplanar waveguide (CPW) fed square patch antenna embedded with triangular EBG backing on FR-4 substrate material for 2.4 GHz (Wi-Fi, LTE) and 5.2 GHz (WLAN) applications. Gain is improved from 2.8 dB to 13.9 dB by adding EBG structure in the proposed antenna and the parametric analysis is done for optimizing the antenna performance characteristics. The proposed antenna provides a maximum efficiency of 82.5% in the resonating frequencies. The prototyped antenna is having good correlation with the simulation results obtained from Finite Element Method (FEM) based Anyss-HFSS. High Frequency Structure Simulator is used to analyze the antenna parameters and the simulated and measured results are correlating well with each other with a slight change in frequencies.

scholarly journals Design of Circular Patch Antenna with Coplanar Waveguide Feed for LTE Application

2020 ◽  
Vol 9 (4) ◽  
pp. 1620-1622
Keyword(s):  
Patch Antenna ◽  
High Frequency ◽  
Coplanar Waveguide ◽  
Impedance Matching ◽  
Conducting Surface ◽  
Circular Patch ◽  
High Frequency Structure Simulator ◽  
Narrow Bandwidth ◽  
Compact Size ◽  
Circular Patch Antenna

In this paper, a circular patch antenna with Coplanar Waveguide (CPW) feed for LTE application is proposed. The proposed antenna design exhibits a decent impedance matching inside the LTE Bands 2.6 GHz. The planar monopole antenna with coplanar waveguide (CPW) feed has been considered here. It has greater advantage over microstrip compose feed lines, low scattering, low radiation spillage, the capacity to successfully control the trademark impedance, and the simplicity of mix. Rogers RT/duroid 5880 is used as substrate having a dielectric constant of 2.2 with a thickness of 1.6 mm and the conducting surface as copper. The proposed antenna obtains a narrow bandwidth in the frequency range of 2.6 GHz. It is suitable for LTE application because of its compact size and less cost to fabrication. The gain and efficiency of this antenna is good. The antenna is designed with the help of High Frequency Structure Simulator (HFSS) software.

Design of Polarization Reconfigurable Patch Antenna for Wireless Communications

2020 ◽  
Vol 35 (8) ◽  
pp. 893-898
Author(s):  
Anumuthu Priya ◽  
S. Kaja Mohideen ◽  
Manavalan Saravanan
Keyword(s):  
Wireless Communication ◽  
Patch Antenna ◽  
High Frequency ◽  
Impedance Match ◽  
Center Frequency ◽  
Network Analyzer ◽  
Cross Polarization ◽  
Circularly Polarized ◽  
Left Hand ◽  
High Frequency Structure Simulator

A single fed circularly polarized reconfigurable patch antenna is proposed. The antenna consists of a radiating patch incorporated with an H-shaped slot at its center. Four ultra-miniature switches are used for polarization reconfiguration. The antenna is designed to operate at the center frequency of 2.357 GHz. The antenna achieves either left-hand polarization or right-hand polarization depending upon switching of corresponding switches. The antenna parameters are simulated using Ansoft high-frequency structure simulator and are validated using an Agilent network analyzer (N9925A) and antenna test systems. The antenna achieves a good impedance match of 120MHz between 2.26GHz – 2.38GHz band and achieves low cross-polarization isolation of -22.82 dB for RHCP and -21.77 dB for LHCP configurations at its operating frequency. The antenna finds application in areas of modern wireless communication.

Study of the Feeding Techniques of Microstrip Antenna at 28 GHz for 5G Applications

2015 ◽  
Vol 781 ◽  
pp. 49-52 ◽  
Author(s):  
Noor Ainniesafina Zainal ◽  
Muhammad Ramlee Kamarudin ◽  
Nor Hidayu Shahadan ◽  
Jamal Nasir ◽  
Mohsen Khalily ◽  
...  
Keyword(s):  
Reflection Coefficient ◽  
Patch Antenna ◽  
High Frequency ◽  
Microstrip Antenna ◽  
Microstrip Patch Antenna ◽  
High Frequency Structure Simulator ◽  
Feed Line ◽  
Microstrip Patch ◽  
Frequency Structure ◽  
Feeding Techniques

This work presents a simulation of two different feeding techniques of microstrip patch antenna for 28GHz, 5G applications. The antenna fed by inset feed line and coplanar feed line. The simulated results using High Frequency Structure Simulator (HFSS) shows that both the reflection coefficient of less than-10dB have been achieved over a frequency of 28GHz; demonstrate a gain of 7.96dBi and 5.72dBi for the inset feed line and coplanar feed line, respectively.

scholarly journals Design of CPW-Fed Antenna with Defected Substrate for Wideband Applications

2016 ◽  
Vol 2016 ◽  
pp. 1-10 ◽  
Author(s):  
Amar Sharma ◽  
Puneet Khanna ◽  
Kshitij Shinghal ◽  
Arun Kumar
Keyword(s):  
High Frequency ◽  
Microstrip Antenna ◽  
Return Loss ◽  
Group Delay ◽  
Ground Plane ◽  
Impedance Bandwidth ◽  
Radiation Characteristics ◽  
High Frequency Structure Simulator ◽  
X Band ◽  
Good Agreement

A CPW-fed defected substrate microstrip antenna is proposed. The proposed antenna shows wideband applications by choosing suitable defected crown shaped substrate. Defected substrate also reduces the size of an antenna. The radiating patch of proposed antenna is taken in the form of extended U-shape. The space around the radiator is utilized by extending the ground plane on both sides of radiator. Simulation of proposed antenna is done on Ansoft’s High Frequency Structure Simulator (HFSS v. 14). Measured results are in good agreement with simulated results. The prototype is taken with dimensions 36 mm × 42 mm × 1.6 mm that achieves good return loss, constant group delay, and good radiation characteristics within the entire operating band from 4.5 to 13.5 GHz (9.0 GHz) with 100% impedance bandwidth at 9.0 GHz centre frequency. Thus, the proposed antenna is applicable for C and X band applications.

Dual-Mode Filter with High Design Flexibility Using Short-Loaded Resonator

2021 ◽  
Vol 36 (2) ◽  
pp. 199-204
Author(s):  
Zhaojun Zhu ◽  
Ke Yang ◽  
Xiufeng Ren ◽  
Lu Cao
Keyword(s):  
Dielectric Constant ◽  
High Frequency ◽  
Impedance Matching ◽  
Relative Dielectric Constant ◽  
Network Analyzer ◽  
Dual Mode ◽  
High Frequency Structure Simulator ◽  
Design Flexibility ◽  
Compact Size ◽  
Good Agreement

This work presents a series of independent bandpass filters (BPFs) based on dual-mode resonators (DMRs) with short stub-loaded. BPFs conform to the 802.11n protocol and include three passbands with center frequencies and bandwidths of 2.46 GHz, 3.55 GHz and 5.22 GHz, 130 MHz, 130 MHz and 470 MHz. Insertion loss and reflection loss are 1.5 dB, 1.6 dB and 1.3 dB, 18 dB, 20 dB, 30 dB. The filters are useful in the WLAN/WIMAX applications with compact size. According to the current distributions along the resonator, the feed-lines with high design flexibility arms were introduced in order to supply the needed external coupling for the dual-/tri passbands simultaneously, and achieve good impedance matching in each passband. Finally, by the version 15 of High Frequency Structure Simulator (HFSS), three BPFs with single, dual and triple passbands were designed on the Rogers 5880 substrate with the relative dielectric constant Ɛr = 2.2, substrate loss tanδ = 0.002, and the thickness h = 0.508 mm. The BPFs are measured by Agilent 85058E Vector Network Analyzer (VNA). The measured results have good agreement with the simulated ones.

scholarly journals Inset Fed Horizontal Wide U-Shaped Slotted Microstrip Antenna for Multi-band Operation

2019 ◽  
Vol 8 (3) ◽  
pp. 6155-6159
Keyword(s):  
Wireless Communication ◽  
Patch Antenna ◽  
High Frequency ◽  
Microstrip Antenna ◽  
Return Loss ◽  
Antenna Design ◽  
Band Width ◽  
High Frequency Structure Simulator ◽  
X Band ◽  
Multi Band

A multi-band horizontal wide U-slotted patch antenna is proposed for wireless communication. Along with the horizontal wide U-slot, the proposed antenna also consists of four truncated corners along with inset feeding for proper antenna matching. The proposed antenna design has three distinct simulated resonating frequencies i.e., 4.7 GHz, 6.8 GHz and 9.8 GHz having -10 dB return loss band width as 111.1 MHz, 245.1 MHz, 998.6 MHz respectively while measured resonating frequencies are observed as 4.75 GHz, 7.1 GHz and 10.2 GHz having -10 dB return loss band width as 539.1 MHz , 410.6 MHz , 2.0834 GHz respectively . The proposed antenna results are examined using High frequency structure simulator tool and then verified through measured results . Thus, the proposed antenna is applicable for frequency bands like S band, C band and X band .

scholarly journals Enhancing the resonance characteristics of circular patch antenna for SHF applications

2021 ◽  
Author(s):  
Mousaab M. Nahas ◽  
Keyword(s):  
Patch Antenna ◽  
High Frequency ◽  
Microstrip Antenna ◽  
Low Cost ◽  
Ground Plane ◽  
Dielectric Substrate ◽  
Ultra Wideband ◽  
Uwb Antenna ◽  
High Frequency Structure Simulator ◽  
Circular Patch Antenna

Microstrip patch antenna is attractive for various applications due to its easy fabrication, low cost and small size. It simply comprises of a radiating patch and ground plane that are separated by a dielectric substrate. However, the resonance bandwidth of the microstrip antenna is still an issue that needs to be considered in research. This paper aims to enhance the bandwidth of a microstrip antenna or introduce more resonant frequencies within the Super High Frequency (SHF) band. The paper demonstrates empirical results for circular-shaped patch antenna using the High Frequency Structure Simulator (HFSS). It begins by investigating different patch sizes and substrate materials, so that an optimal preliminary design is introduced. Then, different slot shapes are inserted into the patch for significant enhancement of the resonance characteristics. As a result, new ultra-wideband (UWB) antenna designs are presented with bandwidth results reaching 15.5 GHz within the C, X, Ku and K bands. Also, new multiband antenna designs are presented with improved reflection valleys in the Ku, K and Ka bands.

Comb Shaped Triple Band Microstrip Antenna for Wireless Communication

2021 ◽  
Vol 9 (4) ◽  
pp. 379-382
Keyword(s):  
Dielectric Constant ◽  
Wireless Communication ◽  
High Frequency ◽  
Microstrip Antenna ◽  
Return Loss ◽  
Experimental Results ◽  
High Frequency Structure Simulator ◽  
Frequency Structure ◽  
Triple Band

A comb shaped microstrip antenna is designed by loading rectangular slots on the patch of the antenna. The antenna resonating at three different frequencies f1 = 5.35 GHz, f2 = 6.19 GHz and f3= 8.15 GHz. The designed antenna is simulated on High Frequency Structure Simulator software [HFSS] and the antenna is fabricated using substrate glass epoxy with dielectric constant 4.4 having dimension of 8x4x0.16 cms. The antenna shows good return loss, bandwidth and VSWR. Experimental results are observed using Vector Analyzer MS2037C/2.

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