scholarly journals The Strip-Ground Rectangular Patch Antenna

2017 ◽  
Vol 2017 ◽  
pp. 1-7 ◽  
Author(s):  
Yiying Wang ◽  
Yinghua Lu
Keyword(s):  
Patch Antenna ◽  
Coaxial Cable ◽  
Center Line ◽  
Cross Polarization ◽  
Solid Ground ◽  
Wearable Antenna ◽  
Rectangular Patch ◽  
Antenna Performance ◽  
Gap Ratio ◽  
Good Agreement

To imitate the broken situation of the conductive threads of the wearable antenna, a strip-ground design of rectangular patch antenna with the conventional substrate is presented to investigate the change of the antenna performance, where the ground is sliced along its E-plane. The strips are symmetrical along the center line of the width of the patch, and the gap ratio of the gap to the solid ground varies with the change of gaps. The conventional patch antenna is used as a reference for comparison with the stripe-ground antennas. And the effect of the coaxial cable, the changes of the impedance, and the cross-polarization of the antenna are investigated. Several antenna prototypes are fabricated and their measured results are in good agreement with the simulations. These results show that the gaps change the performance of the strip-ground antennas, but they can work well if the gap ratio is less than 1 : 4.

scholarly journals Low Cross-Polarization Improved-Gain Rectangular Patch Antenna

Electronics ◽  
2019 ◽  
Vol 8 (10) ◽  
pp. 1189 ◽  
Author(s):  
Anurag Singh ◽  
Sandip Vijay ◽  
Rudra Narayan Baral
Keyword(s):  
Patch Antenna ◽  
Frequency Selective Surface ◽  
Cross Polarization ◽  
Gain Enhancement ◽  
Rectangular Patch ◽  
Shorting Pin ◽  
Half Power ◽  
Broadside Radiation ◽  
Polarization Level ◽  
Good Agreement

In this paper, a low cross-polarization improved-gain rectangular patch antenna is presented. A patch-ground shorting pin with defected patch structure (DPS) is introduced to suppress the cross-polarization level. A High Reflective Frequency Selective Surface (HRFSS) superstrate is designed and placed over the proposed antenna at an optimized position to intensify the gain. To characterize the unit-cell of the superstrate, its transmission characteristics are extracted and discussed. Integration of the superstrate achieves a beam contraction resulting in a gain enhancement to 10.65 dBi. The proposed antenna has perfect broadside radiation with a cross-polarization level of below −30 dB in the entire half power beamwidth. The prototype of the antenna exhibits good agreement between experimental and simulated results.

scholarly journals Study of Effect of Variations in slot dimensions on Fractal Patch antenna Performance

2013 ◽  
Vol 5 (1) ◽  
pp. 41-48
Author(s):  
Somesh Kumar ◽  
Ms. Monika
Keyword(s):  
Patch Antenna ◽  
Electromagnetic Waves ◽  
Low Cost ◽  
Research Work ◽  
Microstrip Antennas ◽  
Strip Line ◽  
Rectangular Patch ◽  
Antenna Performance ◽  
Feed Networks ◽  
Microwave Communications

An antenna is a device that is made to efficiently radiate and receive radiated Electromagnetic waves. Microstrip antennas are attractive due to their light weight, conformability and low cost. These antennas can be integrated with printed strip-line feed networks and active devices. This is a relatively new area of antenna engineering. For reducing the size of antenna, fractal geometries have been introduced in the design of patch antenna. Fractal antennas also called as space filling curves are very compact, multiband or wideband, and have useful applications in cellular telephone and microwave communications. In our research work, we have used IE3D software for designing the antenna. We study the effect of variations of slot dimensions on antenna performance so as to obtain good results. In this research work, four different fractal patch antennas are designed. The rectangular base geometry is same for the all four antennas but the elliptical slot dimensions differ. In simulation, S parameters of all four antennas are analyzed. From the S parameter displays, comparison of all four antennas is done on the basis of three parameters that are: Lowest frequency, Multiband and S11 values. The simulation results shows that as the elliptical slot dimension decreases on rectangular patch antenna, the performance of fractal patch antenna improves on the basis of three factors that are lowest frequency, multiband and s11 values.

scholarly journals Polygon Shaped 3G Mobile Band Antennas for High Tech Military Uniforms

2016 ◽  
Vol 5 (3) ◽  
pp. 7 ◽  
Author(s):  
M. Krishnan ◽  
G. Kannan
Keyword(s):  
Dielectric Constant ◽  
Patch Antenna ◽  
Slit Width ◽  
High Tech ◽  
Smart Textiles ◽  
Band Frequency ◽  
Wearable Antenna ◽  
Antenna Performance ◽  
Military Applications ◽  
Slit Length

Smart Textiles integrated with communicating components have been used in military for many applications. Wearable antenna can be attached or embedded into smart textiles which could be used for communication between combat soldiers in the battlefield. This paper presents the design of three different polygon shaped patch antenna operating on 3G Mobile Band frequency 2100 MHz embedded on three different dielectric constant materials for Military applications. The proposed polygon shaped patch antenna introduces horizontal slit in its patch to improve the antenna performance. The effect of slit length and slit width on the antenna performance is analyzed.  

scholarly journals Bandwidth and Efficiency Enhancement of Rectangular Patch Antenna for SHF Applications

2019 ◽  
Vol 9 (6) ◽  
pp. 4962-4967
Author(s):  
M. M. Nahas ◽  
M. Nahas
Keyword(s):  
Patch Antenna ◽  
High Frequency ◽  
Low Cost ◽  
Ground Plane ◽  
Cost Effective ◽  
Dielectric Substrate ◽  
Microstrip Patch Antenna ◽  
Microstrip Patch ◽  
Rectangular Patch ◽  
Antenna Performance

The microstrip patch antenna is used in various communication applications including cellular phones, satellites, missiles, and radars, due to its several attractive features such as small size and weight, low cost, and easy fabrication. The microstrip patch antenna consists of a top radiating patch, a bottom ground plane, and a dielectric substrate in between. The patch can have different shapes, the rectangular patch being the most commonly used. In practice, the microstrip antenna suffers from narrow bandwidth and low gain efficiency. This paper aims to enhance the bandwidth and efficiency of a rectangular-patch antenna using the High-Frequency Structure Simulator (HFSS). Initially different patch sizes and substrate materials are investigated and optimal antenna parameters are achieved. Then, the antenna performance is further enhanced by inserting single and double slot designs into the patch. Two cost-effective feeding methods are involved in the investigation. The antenna is designed to operate in the Super High Frequency (SHF) band.

A Frequency and Polarization Reconfigurable Dual-Patch Microstrip A Frequency and Polarization Reconfigurable Dual-Patch Microstrip

2021 ◽  
Vol 36 (2) ◽  
pp. 152-158
Author(s):  
Cong Bui ◽  
Thanh Dang ◽  
Minh Doan ◽  
Truong Nguyen
Keyword(s):  
Patch Antenna ◽  
Microstrip Patch Antenna ◽  
Antenna Design ◽  
Reconfigurable Antenna ◽  
Pin Diode ◽  
Varactor Diode ◽  
Ism Band ◽  
Microstrip Patch ◽  
Antenna Performance ◽  
Good Agreement

This paper proposes a reconfigurable microstrip patch antenna design for wireless ISM band applications. The antenna simultaneously uses PIN Diodes to switch between linear and circular polarization at 2.45 GHz and uses Varactor Diode to continuously tune the operating frequency from 1.73 GHz to 2.45 GHz. The antenna performance is characterized as a combination of ON/OFF state of PIN Diode and a bias voltage of Varactor Diode varying from 0.8V to 10V. A good agreement between simulation and measurement is obtained which validates the proposed method. The proposed frequency/polarization reconfigurable antenna is promising for various applications in wireless ISM band such as DCS (1710 – 1880 MHz), PCS (1850 – 1990 MHz), GSM 1800, GSM 1900, UMTS (1920 – 2170 MHz) and WiFi/Bluetooth (2.4 – 2.5 GHz).

scholarly journals Design of Transparent Rectangular Patch Antenna for 5G Applications

2020 ◽  
Vol 9 (4) ◽  
pp. 2957-2962
Keyword(s):  
Line Width ◽  
Patch Antenna ◽  
Material Handling ◽  
Fabrication Process ◽  
Optical Transparency ◽  
Paper Briefly ◽  
Mesh Structure ◽  
Solid Ground ◽  
Rectangular Patch ◽  
Optically Transparent

Transparent antennas are meant for their optical transparency. This paper analyzes the rectangular patch antenna designed using meshed conductors and solid ground planes. Meshing the antennas makes it as optically transparent and the antenna’s transparency is based on the mesh geometry. Even there is a tradeoff between the antenna’s efficiency and the visual seethrough ability of the patch antenna with meshed structure, it is able to tune the antenna by refining mesh lines. Material handling, fabrication process and the increased impedance are the important factors limiting the refining of the mesh lines, which also cause loss in efficiency of the antenna. Both the performance and antenna transparency is improved by a mesh refined with small line width (q). Also, by removing certain mesh lines, the antenna transparency is improved without affecting the antenna efficiency. This paper briefly explains the relation between the gain, transparency and the mesh structure of the antenna.

scholarly journals The Effect of a Single and Combined Slot Generated At the Upper and Lower Part of the Rectangular Patch Antenna Performances

2016 ◽  
Vol 4 (1) ◽  
Author(s):  
Adnan Affandi ◽  
Navin Kasim ◽  
Talal Hamdan Hamad Althebiani
Keyword(s):  
System Design ◽  
Radiation Pattern ◽  
Patch Antenna ◽  
Ground Plane ◽  
Antenna Feed ◽  
Feed Line ◽  
Rectangular Patch ◽  
Antenna Performance ◽  
Advanced System

<div><p><em>The paper investigates the effect of the slot made on the radiating plane (top) and ground plane individually and their effect when made on both the surfaces on the antenna performance. The paper further investigates effect of the slot on gain, frequency and radiation pattern made at different angles more specifically at angles of </em><em>0°,45° and 90° to the antenna feed line.</em></p><p><em>The antenna has been designed using advanced system design (ADS).</em></p></div>

Ultra-low noise active microstrip antenna

2013 ◽  
Vol 6 (5) ◽  
pp. 515-520 ◽  
Author(s):  
Mahmoud Abdipour ◽  
Gholamreza Moradi ◽  
Reza Sarraf Shirazi
Keyword(s):  
Patch Antenna ◽  
Microstrip Antenna ◽  
Low Noise ◽  
Band Frequency ◽  
Rectangular Patch ◽  
Full Wave ◽  
Receiving Antenna ◽  
Ultra Low Noise ◽  
Good Agreement ◽  
Wave Momentum

An active receiving antenna for Radio Navigation and Radio Positioning applications in S-band frequency is designed and fabricated. In this active antenna, the amplifier is integrated with the radiator which is a rectangular patch antenna. This patch antenna is analyzed with full-wave momentum method. With the developed design routine, ultra-low noise active receiving antenna can be realized. The ADS software and its full-wave Momentum is used for simulation. The experimental results show good agreement with the simulation results.

scholarly journals Defected Ground Micro strip Patch Antenna For WLAN applications

2019 ◽  
Vol 8 (9) ◽  
pp. 1575-1579
Keyword(s):  
Patch Antenna ◽  
Group Delay ◽  
Patch Antennas ◽  
Wide Bandwidth ◽  
Defect Reduction ◽  
Wireless Applications ◽  
Rectangular Patch ◽  
Lower Group ◽  
Good Agreement

In this paper, a microstrip rectangular patch antenna (MRPA) with defect in ground in terms of reduction in dimension has been simulated, tested and analyze for multiband wireless applications. The defect (reduction in size) has been introduced to study the grounding effect in patch antennas for four configuration namely full ground, quarter ground, half ground right and half ground left antennas. After the comparison of simulated results of all four structures, the proposed better performed antenna with 23.815mm x 41 mm x 1.6mm dimension has been fabricated and tested. It operates in wide bandwidth from 2.5 GHz to 9.2 GHz suited for S band requirements which covers many wireless applications like Wifi, WLAN and WiMax. The experiment results shows that the proposed antenna has lower group delay and loss, ideal VSWR less than 1.5, impedance nearer to ideal 50 ohm and gain of 4.3 dBi. There is very good agreement between the simulated and tested results.

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