scholarly journals A novel tri-band reconfigurable microstrip patch antenna

Frequenz ◽  
2020 ◽  
Vol 74 (7-8) ◽  
pp. 247-253
Author(s):  
Wen Tao Li ◽  
Meng Wei ◽  
Bahareh Badamchi ◽  
Harish Subbaraman ◽  
Xiaowei Shi
Keyword(s):  
Patch Antenna ◽  
Simple Structure ◽  
Microstrip Patch Antenna ◽  
Pin Diodes ◽  
Microstrip Patch ◽  
X Band ◽  
Measurement Results ◽  
Simulation Results ◽  
Good Agreement ◽  
Ku Band

AbstractIn this paper, a novel tri-band reconfigurable patch antenna with simple structure is presented. By changing the on-off state of only two PIN diodes, the antenna can operate in three bands, namely X-band, Ku-band, and Ka-band. The overall size of the antenna is 0.24λL × 0.5λL × 0.019λL, where λL is the free-space wavelength of the lowest operating frequency. A prototype is fabricated and measured to verify the design. The measurement results are in good agreement with the simulation results, which indicate that the proposed antenna can be flexibly switched between three bands of 10.9–11.18 GHz, 15.65–15.9 GHz, and 32.3–33.6 GHz with stable radiation patterns.

Optimization of a broadband directional gain microstrip patch antenna for X–Ku band application

2013 ◽  
Vol 5 (1) ◽  
pp. 77-84 ◽  
Author(s):  
Anubhuti Khare ◽  
Rajesh Nema
Keyword(s):  
Patch Antenna ◽  
Middle Layer ◽  
Microstrip Patch Antenna ◽  
Impedance Bandwidth ◽  
Microstrip Patch ◽  
Indirect Coupling ◽  
X Band ◽  
Different Dimensions ◽  
Rectangular Microstrip Antenna ◽  
Ku Band

In this paper, optimization of a microstrip patch antenna is presented. The optimization uses a genetic algorithm in the IE3DTM Simulator. The optimization is done in several steps, first by changing the position of parasitic patches on the top layer, second by placing a feeding patch at the middle layer of geometry, and third by indirect coupling between the top and middle layer patches. Overall, we have performed many possible iterations and found appropriate geometry. From this appropriate geometry we have achieved maximum directional gain (6.2–8.8 dBi) over a 6 GHz bandwidth slot, 38% impedance bandwidth of the X-band and 14.8% impedance bandwidth of the Ku-band. The broadband frequency of operation is demonstrated by single geometry. The geometry of a single probe fed rectangular microstrip antenna incorporating a slot, gap coupled with a parasitic and an active patch on geometry, has been studied. We have investigated the height between active and parasitic patches as 0.0525λ and the height between parasitic patches itself as 0.0525λ. We have investigated the enhancement in maximum directional gain by stacking geometry with one active patch and two parasitic patches of different dimensions. This optimized antenna is used for X-band and Ku-band applications. The hardware validation and simulation results are matched to the proposed design.

scholarly journals Design, Simulation and Fabrication of Multiband Antenna using HFSS

2019 ◽  
Vol 8 (2) ◽  
pp. 5851-5859
Keyword(s):  
Patch Antenna ◽  
Research Work ◽  
Microstrip Patch Antenna ◽  
Slot Antenna ◽  
Ka Band ◽  
Frequency Bands ◽  
Microstrip Patch ◽  
X Band ◽  
Ku Band ◽  
K Band

Microstrip antennas are popular because of their low profile, light weight and low cost but narrow bandwidth and gain are the main disadvantages of this antenna. In this paper Multiband Octagonal Patch Antenna has been designed by ring slot technique for working in nine different frequencies presented in multi band C-band, X-band, Ku-band, K-band, Ka-band, Q-band and U-bands. Main applications of these bands are used in terrestrial microwave communications. In this research work, the performance of octagonal patch antenna operating at 7 different bands is analyzed. The Design methodology of the proposed research carried in 2 major modules. 1. Design of Single Octagonal Ring Slot antenna, 2. Design of Double Octagonal Ring Slot antenna. In the first design a single octagonal ring slot microstrip patch antenna is developed which resonates at six frequencies of five different frequency bands of C-band, Ku-band, K-band, Q-band and U-bands. In the second design a double octagonal ring slot microstrip patch antenna is developed which resonates at nine frequencies of six different frequency bands of X-band, Ku-band, K-band, Ka-band, Q-band and U-bands. The proposed antenna has been simulated by HFSS and measured by combinational analyzer.

scholarly journals The Improved Radiations in Planar Microstrip Patch Antenna using Linear Slot Etched Ground Plane

2020 ◽  
Vol 8 (6) ◽  
pp. 123-127
Keyword(s):  
Dielectric Constant ◽  
Resonant Frequency ◽  
Patch Antenna ◽  
Ground Plane ◽  
Dominant Mode ◽  
Microstrip Patch Antenna ◽  
Microstrip Patch ◽  
Rectangular Microstrip Patch Antenna ◽  
Simulation Results ◽  
Good Agreement

Radiations improvement in a probe fed rectangular microstrip patch antenna using linear slot etched ground plane is proposed. Conventional MPA is designed using Glass Epoxy FR4 substrate. Substrate has dielectric constant 4.4 and its thickness 1.6 mm, operated at resonant frequency 3.05 GHz. The proposed method is simple and easy to etch on a substrate. This will suppress cross-polarized (XP) radiation field only without disturbing the dominant mode and co-polarized radiations. The concept has been tested using HFSS tool and verified its results experimentally. The experimental results show a good agreement with the simulation results.

scholarly journals Compact Double-P Slotted Inset-Fed Microstrip Patch Antenna on High Dielectric Substrate

2014 ◽  
Vol 2014 ◽  
pp. 1-6 ◽  
Author(s):  
M. R. Ahsan ◽  
M. T. Islam ◽  
M. Habib Ullah ◽  
W. N. L. Mahadi ◽  
T. A. Latef
Keyword(s):  
Patch Antenna ◽  
High Dielectric Constant ◽  
Dielectric Substrate ◽  
Microstrip Patch Antenna ◽  
Radiation Efficiency ◽  
Radiation Patterns ◽  
Microstrip Patch ◽  
Measurement Results ◽  
High Dielectric ◽  
Good Agreement

This paper presents a compact sized inset-fed rectangular microstrip patch antenna embedded with double-P slots. The proposed antenna has been designed and fabricated on ceramic-PTFE composite material substrate of high dielectric constant value. The measurement results from the fabricated prototype of the antenna show −10 dB reflection coefficient bandwidths of 200 MHz and 300 MHz with center resonant frequency of 1.5 GHz and 4 GHz, respectively. The fabricated antenna has attained gains of 3.52 dBi with 81% radiation efficiency and 5.72 dBi with 87% radiation efficiency for lower band and upper band, respectively. The measured E- and H-plane radiation patterns are also presented for better understanding. Good agreement between the simulation and measurement results and consistent radiation patterns make the proposed antenna suitable for GPS and C-band applications.

SIW-fed microstrip patch antenna array for circular polarization

2017 ◽  
Vol 9 (9) ◽  
pp. 1877-1881 ◽  
Author(s):  
Laaya Sabri ◽  
Nasrin Amiri ◽  
Keyvan Forooraghi
Keyword(s):  
Circular Polarization ◽  
Antenna Array ◽  
Patch Antenna ◽  
Axial Ratio ◽  
Microstrip Patch Antenna ◽  
Impedance Bandwidth ◽  
High Radiation ◽  
Microstrip Patch ◽  
X Band ◽  
Good Agreement

A new single-feed aperture-coupled, X-band microstrip patch antenna array with circular polarization (CP) is designed. CP is achieved using indented microstrip patches fed through the slots on a substrate integrated waveguide. The antenna has the high radiation efficiency more than 90% over the operating frequency. Impedance bandwidth (VSWR < 2) and axial ratio bandwidth (AR < 3 dB) of 11.8, and 10.9% is attained, respectively. Good agreement is achieved between simulated and measured results.

scholarly journals Microstrip Patch Antenna for GPS/WiMAX/WLAN Applications

2019 ◽  
Vol 8 (2) ◽  
pp. 26-28
Keyword(s):  
Patch Antenna ◽  
Simple Structure ◽  
Microstrip Patch Antenna ◽  
Microstrip Patch ◽  
Low Profile ◽  
Feeding Technique ◽  
Simulation Results

In this paper a microstrip patch antenna is proposed for GPS/WiMAX/WLAN applications. The proposed structures resonate to cover the desired band with low profile and simple structure of 30 x 35 mm2 . An aperture coupled feeding technique is introduced to get the desired result, two substrates, out of which the ground of the first substrate is etched by taking a slot and some simple slots are also etched on the top (patch) of the antenna. To test the simulation results, a prototype antenna is produced and tested. The radiation performance such as Voltage StandingoWaveoRatioo(VSWR),oreturnolossoandoradiationopat ternoofoantennaoareoobservedobyousingoAnsysHFSSov.15.0.0o 15.0.oTheosimulatedoandomeasuredoradiationoperformanceois opresentedoinothisopaperowhichoshowsothatotheoproposedoant ennaoresonatesoato1.57542oGHzo(1.55o-o1.64oGHz),o3.5oGHz o(3.42o-o3.57oGHz),oando5.2oGHzo(5.11o-o5.48oGHz) for GPS, WiMAX and WLAN applications respectively

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