scholarly journals MULTI BAND MICRO STRIP PATCH ANTENNA FOR WIRELESS APPLICATIONS

2021 ◽  
Vol 25 (Special) ◽  
pp. 1-152-1-156
Author(s):  
Lina M. Nori ◽  
◽  
Raad H. Thahir ◽  
Keyword(s):  
Patch Antenna ◽  
Relative Dielectric Constant ◽  
Satellite Communications ◽  
Dielectric Substrate ◽  
Wireless Applications ◽  
Microstrip Patch ◽  
Triangular Patch ◽  
X Band ◽  
Copper Material ◽  
Zigzag Shape

This research paper aims to design a new shape of the microstrip patch antenna. Combining a half circular and zigzag shape of a triangular patch antenna, we selected two different shapes of microstrip patch to obtained modern shape no one mentioned it before and it’s seems like a tulip rose, so this design achieved to works for multiband. The dimensions of the proposed antenna are (38×30×1.6) mm3 applied on the dielectric substrate FR-4, which has a relative dielectric constant of (εr=4.3) and loss tangent (tanδ=0.002). Both patch and ground are copper material with a thickness (t=0.035 mm). So four-band are achieved (5.1612-5.3874) GHz, (8.8729-10.067) GHz, (10.476-11.091) GHz, and (13.819-30) GHz. The return loss (S11) are (-20.784) dB, (-30.532) dB, (-19.246) dB and (-29.789) dB respectively. The antenna is printed by using FR-4 substrate and simulated by CST-Microwave studio software. This antenna works for various wireless applications such as Wi-FI, C band, X band, Ku band, Ka-band, cellular phones, and satellite communications.

scholarly journals Miniaturized Triple seven Shaped Microstrip patch Antenna for X band Satellite Communications

2018 ◽  
Vol 11 (19) ◽  
pp. 1-4
Author(s):  
V. Keral Shalini ◽  
M. Annakamatchi ◽  
S. Arthireena ◽  
◽  
◽  
...  
Keyword(s):  
Patch Antenna ◽  
Satellite Communications ◽  
Microstrip Patch Antenna ◽  
Microstrip Patch ◽  
X Band

Dual Band Slotted Microstrip Patch Antenna For Wireless Applications

2015 ◽  
Vol 6 (1) ◽  
Author(s):  
Sushila Gupta ◽  
Esha Johari
Keyword(s):  
Patch Antenna ◽  
Dielectric Material ◽  
Dielectric Substrate ◽  
Microstrip Antennas ◽  
Dual Band ◽  
Band Frequency ◽  
Feeding Method ◽  
Wireless Applications ◽  
Microstrip Patch ◽  
Dual Band Antenna

This paper describes dual-band patch antenna. The dual-band operation is obtained by embedding a pair of Lshaped slots. Dual band antenna can reduce the size of antenna 40%, comparing with rectangular microstrip antennas on normal dielectric substrate, and have wider bandwidths for both bands. In this paper L-shaped slots patch antenna with length L= 25.74 mm and width W = 31.20 mm fabricated based on availability of Rogers Duorid 5880 dielectric material and a prototype antenna is developed. The dielectric constant of Rogers Duorid 5880 material is e= 2.2 having thickness h = 0.16 mm and copper thickness is 35 microns using a coaxial feeding method for dual band operation. The prototype antenna is operating in S band frequency range.

scholarly journals Reconfiguration of Circular Microstrip Patch Antenna for Wireless Applications

2018 ◽  
Vol 7 (3.6) ◽  
pp. 348
Author(s):  
J Premalatha ◽  
D Sheela ◽  
M Abinaya
Keyword(s):  
Patch Antenna ◽  
Axial Ratio ◽  
Dielectric Substrate ◽  
Reconfigurable Antennas ◽  
Microstrip Patch Antenna ◽  
Pin Diode ◽  
Wireless Applications ◽  
Microstrip Patch ◽  
Ansoft Hfss ◽  
Circular Patch Antenna

Reconfigurable antennas provide a possible solution to solve the related problems using the ability to switch frequency, patterns and polarization. This paper represents a possible application in wireless communication using reconfigurable Microstrip patch antenna. The dielectric substrate of proposed circular Microstrip patch antenna is fabricated with FR 4 epoxy and patch design 40x40x1.6mm. This work provides a methodology to design reconfigurable antennas with PIN diode switch. The frequency reconfiguration achieved by PIN diodes At the range of 3 GHZ to 6.9 GHZ the frequency reconfigurability  is realized. To resonate the antenna at various frequencies PIN diode is used. Simulation of Ansoft HFSS software is used to compute the gain, axial ratio, radiation pattern, and return loss of proposed antenna. The structure of circular patch antenna achieves an enhanced wide bandwidth. The results show a better frequency reconfiguration.  

scholarly journals Wideband Design of Circular Microstrip Patch Antenna using Rectangular Metal Sheet Superstrate for X-Band Applications

2020 ◽  
Vol 9 (7) ◽  
pp. 987-992
Keyword(s):  
Patch Antenna ◽  
Impedance Matching ◽  
Dielectric Substrate ◽  
Microstrip Patch Antenna ◽  
Metal Sheet ◽  
Impedance Bandwidth ◽  
Circular Patch ◽  
Microstrip Patch ◽  
X Band ◽  
Simple Change

A wideband circular microstrip patch antenna (CMPA) has been presented employing a rectangular metal sheet superstrate. The proposed concept follows a unique, simple, and a flexible design approach to enhance the bandwidth of a circular patch. A simple change in the conventional antenna geometry has been suggested by adding a rectangular metal sheet superstrate, placed symmetrically above the patch. A cylindrical shaped foam spacer has been used to provide mechanical support to the optimized superstrate. The proposed antenna offers about 36% of impedance matching bandwidth ranging between 8.46 GHz to 12.06 GHz with a total bandwidth of 3.6 GHz. Whereas, a conventional circular patch, resonating at 9.96 GHz, hardly shows about 4.8% of impedance bandwidth (480 MHz) only. In addition to the enhanced bandwidth characteristics, the proposed antenna, also reveals a little increase in the gain throughout the operating frequency band. For the experimental validation, a set of antenna prototype has been fabricated using the commercially available dielectric substrate. The measured result is very closely agreed with the simulated predictions.

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 Design, Simulation and Experimental Analysis of Square Microstrip Patch Antenna with Superstrates at 2.4GHz

2020 ◽  
Vol 9 (1) ◽  
pp. 1297-1300
Keyword(s):  
Patch Antenna ◽  
High Speed ◽  
Satellite Communications ◽  
Dielectric Substrate ◽  
Substrate Material ◽  
Microstrip Patch Antenna ◽  
Performance Characteristics ◽  
Center Frequency ◽  
Microstrip Patch ◽  
Proposed Model

Microstrip antenna is used in wide area of applications such as high speed vehicles, missiles, tanks and satellite communications. In these applications dielectric superstrate (or cover) is used above the square patch antenna for providing the protections from severe environmental conditions such as rain, snow, heat, and damage etc. The proposed square microstrip patch antenna is designed using coaxial probe feed technique and transmission line model and operated at center frequency of 2.40 GHz, which is lying in the S-band region. The proposed model is used in linear polarization applications. The square patch is fabricated on low loss dielectric substrate material having dielectric constant is 2.2 and loss tangent of the substrate material is 0.0009. Ansoft electromagnetic simulator software such as HFSS is used for simulating proposed model and studied the effect cover or superstrate on different parameters of square patch antenna. This paper mainly focuses on the performance of square patch antenna without superstrate, and with superstrate at different height of dielectric superstrate above the patch antenna. The result found of patch antenna without superstrate the bandwidth is 0.04GHz and gain is obtained 8.9 dB and 7.51 dB in azimuth and elevation respectively. The result observed of patch antenna with dielectric cover (or superstrate) at height H =0, the antenna performance characteristics are slightly degraded and also comparing the antenna with the bandwidth is decreased to 0.02GHz from 0.04 GHz and gain is decreases to 6.44 dB and 6.6 dB from 8.9 dB and 7.51 dB in both azimuth and elevation plane respectively. The decreased performance characteristics of antenna will be improved by varying height of the superstrate above the patch antenna.. At particular optimum height, the performance characteristics patch antenna will be almost same as the patch antenna without superstrates. The obtained simulated results good match with measurement results.

scholarly journals Design of dual and Wideband Rectangular Patch Antenna for C and X Band Applications

2018 ◽  
Vol 7 (5) ◽  
pp. 145-150 ◽  
Author(s):  
S. Lakrit
Keyword(s):  
Patch Antenna ◽  
Satellite Communications ◽  
Microstrip Antennas ◽  
Dual Band ◽  
Wireless Applications ◽  
Rectangular Patch ◽  
Narrow Bandwidth ◽  
X Band ◽  
Resonance Frequencies ◽  
Radar Satellite

In this paper, we resolve two issues of microstrip antennas, which are miniaturization and efficiency behavior. For  that, a rectangular patch antenna with 16×18×1.6 mm3 dimensions with dual-band characteristics, was designed, fabricated and characterized.  In order to improve the problem of narrow bandwidth in  microstrip antennas, we implement in this study the slot  technique, allowing us to achieve our purpose. This technique,  lead to a good reflection coefficient and VSWR. The  characteristics of the fabricated antenna were measured and  analyzed by Vector Network Analyzer. The results show two  resonance frequencies that define two bandwidths defined by a  return loss less than -10 dB and are respectively; 7.47 GHz at a  frequency of 400 MHz, and 11.01 GHz at a frequency of 790  MHz. Also, the obtained gain has a good value and it’s very  remarkable according to the small size of the structure, with  a peak value of 6.1 dB at 12.5 GHz.  The small size and good characteristics enlarged the applications  domains of our structure, from telecommunications and  especially Radar, satellite communications to medical and  wireless applications.

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