IJERT-Bandwidth Enhancement of Microstrip patch Antenna using Suspended Techniques for Wireless Applications (original) (raw)
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Bandwidth Improvement in Hexagonal Micro Strip Patch Antenna with Suspended Structure
International Journal of Advance Engineering and Research Development, 2017
This paper signifies a bandwidth improvement technique of hexagonal micro strip patch antenna for dual band. Due to addition a notch in a hexagonal micro strip patch antenna tunes it for two different frequencies 1.9GHz(used in PCS mobile applications) and 2.4GHz (used in Bluetooth application) and due to suspended nature of hexagonal antenna improve bandwidth of antenna.The hexagonal nature of the antenna makes it circularly polarized.
Suspended microstrip patch antenna with dielectric resonator loading for enhanced bandwidth
Microwave , Asia-Pacific Conference, 2000
This paper reports experimental investigations on suspended microstrip rectangular patch antennas at X-band with dielectric resonator loading. By placing the resonator at appropriate position on the patch, an impedance bandwidth of about to 12.3% and an improvement in gain over the unloaded case by about 1 to 2 dB have been achieved, without much change in the radiation pattern
Bandwidth Improvement in Hexagonal Micro strip Patch Antenna with suspended structure-IJAERD
2017
Abstract—This paper signifies a bandwidth improvement technique of hexagonal micro strip patch antenna for dual band. Due to addition a notch in a hexagonal micro strip patch antenna tunes it for two different frequencies 1.9GHz(used in PCS mobile applications) and 2.4GHz (used in Bluetooth application ) and due to suspended nature of hexagonal antenna improve bandwidth of antenna.The hexagonal nature of the antenna makes it circularly polarized.
A Capacitive Fed Microstrip Patch Antenna with Air Gap for Wideband Applications (RESEARCH NOTE)
International Journal of Engineering, 2014
In this paper, a microstrip antenna on a suspended substrate with capacitive feed is presented. capacitive feed is created by a slot within the rectangular patch around the feed point. The proposed antenna exhibits a much higher impedance bandwidth of about 47% (S11 < −10 dB). Effects of key design parameters such as the air gap between the substrate and the ground plane, the gap width between radiator patch and feed point, and the location of the feed point on the input characteristics of the antenna have been investigated and discussed. A prototype of the antenna is also fabricated and tested to verify the design. Measured characteristics of the antenna are in good agreement with the simulated results.
International Journal of Engineering Research and Technology (IJERT), 2015
https://www.ijert.org/comparative-analysis-of-bandwidth-enhancement-of-a-rectangular-microstrip-patch-antenna-using-capacitive-non-capacitive-coupled-feed https://www.ijert.org/research/comparative-analysis-of-bandwidth-enhancement-of-a-rectangular-microstrip-patch-antenna-using-capacitive-non-capacitive-coupled-feed-IJERTV4IS010446.pdf In the present Scientific, Technological scenario the use of Microstrip Antenna has raised tremendously because of its versatile features. So far as this paper is concerned, this paper presents a comparative study of a rectangular Microstrip patch antenna at Gigahertz (GHz) frequency using non contacting microstrip feed lines of length 14.5 mm and feed line of contacting length with superstrate. This means we created capacitive coupling between patch and feed line in the first case and in the later case Patch and Feed Line is connected well together. The results presented here are obtained using Ansoft High Frequency Structure Simulator (HFSS) 11.0 software which is based on full wave finite element method. In this designing a superstrate of thickness 5mm is also introduced to get the more precise results. Here it is very important to mention that the best performance of antenna i.e., below-10dB that we achieved in both Contacting and Non-Contacting cases, Bandwidth of 8% is obtained in contacting case and bandwidth of 6.4% is obtained when capacitive coupling is created between Patch and Feed Line. As a matter of course, we obtained resonance frequency of 17.2 GHz at solution frequency of 17.8 GHz.
Dual Band Suspended Hexagonal Patch Antenna
This paper presents a suspended hexagonal Antenna. The hexagonal antenna with stub tunes for a two frequencies 1.9GHz(used in PCS mobile applications) and 2.4GHz (used in Bluetooth application ).In this paper demonstrate the suspended structure of the antenna that enhance the bandwidth of the antenna 102 MHz for PCS and 172 MHz for Bluetooth. The design of the proposed antenna is tested by experimentally. To study the effect of different height of the air gap on the performance of the antenna.
A Triple-band Suspended Microstrip Antenna with Symmetrical USlots for WLAN/WiMax Applications
Advanced Electromagnetics
In this study, a triple-band suspended microstrip antenna with symmetrical U-slots is proposed for modern wireless communication systems. The antenna is specifically designed to acquire application in WLAN and WiMAX communication. Symmetrical U-slots in the radiator patch increase the number of resonances and improve the gain response. An appropriate air height was maintained between the ground plane and the radiator patch layer for improving bandwidth operation. The impedance characteristics of the antenna are enhanced using probe feeding techniques. The proposed compact antenna is designed on a single dielectric substrate of (30×25×1.56) mm3 . Parametric analysis of the proposed structure has been realized using IE3D software. This prototype exhibits maximum impedance bandwidth of 750 MHz and gain response of 7.28 dBi. The performance of the structure at three resonating bands i.e., at 3.3 GHz, 3.78 GHz and 5.3 GHz facilitate it to be applicable for WLAN/WiMAX systems.
Coplanar Capacitive Coupled Compact Microstrip Antenna for Wireless Communication
International Journal of Wireless Communications and Mobile Computing, 2013
In this paper, a coplanar capacitive coupled suspended microstrip antenna with reduced air gap (compact) for wireless applications is presented. Suspended microstrip antennas offer wide bandwidth due to the reduced effective dielectric constant and surface waves. However, air gap in the suspended configuration is the prime constraint in compact applications. Therefore, in this paper it is demonstrated that the air gap can be significantly reduced by utilizing the previously reported approaches and modifying them would result in significant reduction compared to the results reported earlier for the similar antenna geometries. The designs presented here exhibit the fractional impedance bandwidth of nearly 25% for all cases studied in the frequency range of 2-10 GHz.
Design of Hexagonal Microstrip Patch Antenna for Bandwidth Enhancement and Miniturization
International Journal of Technical Research & Science
This paper presents the design and performance of inset feed hexagonal patch antenna for miniaturization, bandwidth enhancement and circular polarization. Along with the novel geometry, a 2X1 array and 2X2 array of hexagonal patch has also been implemented. The prototype of the antenna has been designed and simulated on ADS (Advanced Design System). By implementing the hexagonal geometry, impedance bandwidth has improved by 62.8% and the gain has been enhanced by 14.2%.The designed antenna resonates at a frequency of 5Ghz.Nowadays,this frequency band is being used extensively in various applications which primarily include Wi-Fi and WLAN, which earlier was used in 2.4 GHz frequency band. A comparative study of hexagonal geometry with rectangular geometry arrays has been presented in terms of impedance bandwidth, gain and polarizations. The designed hexagonal array antennas have been fabricated by CNC Engraver while the rectangular geometry arrays by photo-lithographic method. The design is fabricated and tested on Vector Network Analyzer (VNA).It is found that the stimulated results are in close proximity with the fabricated ones. The antenna design can be used in modern day mobile communication due to its optimized area coverage along with enhanced bandwidth.
In this paper, a new probe-fed wideband antenna with a circular patch and a coupled stacked ring is proposed. This antenna can be implemented by using suspended microstrip technique with total thickness of about 0.09 of center frequency wavelength. By using a novel feeding technique, in this antenna about 40 % reduction in area compared to similar works can be achieved. The obtained bandwidth in this antenna according to simulation results satisfying VSWR<2 is about 27.5 % from 5 to 6.6 GHz using two resonant frequencies. Also a comprehensive theoretical and parametric study is done in order to facilitate its designing in various frequency bands.