scholarly journals L-Slots Square Antenna for Octa-band Applications

2021 ◽  
Author(s):  
Tejaswita Kumari ◽  
Prabir Ghosh ◽  
Atanu Chowdhury
Keyword(s):  
Dielectric Constant ◽  
Radiation Pattern ◽  
Current Distribution ◽  
Patch Antenna ◽  
Return Loss ◽  
Single Port ◽  
Surface Current ◽  
Surface Current Distribution ◽  
Commercial Software

The objective of this paper is to design an Octa- Band L-slot Square Patch antenna which will operate in 3.18 GHz, 4.71 GHz, 7.04 GHz, 8.38 GHz, 8.86 GHz, 10.66 GHz, 11.76 GHz, 14.12 GHz frequencies. The same antenna would also work in UWB frequencies. An L-slots Square copper patch with a thickness 0.035mm is placed on FR4 epoxy substrate having dielectric constant 4.4 with a height of 1.6 mm with single port. This has been designed using HFSS commercial software simulator so that Return Loss, VSWR, Radiation pattern and Surface current distribution can be measured.

scholarly journals Frequency Reconfigurable Compact Antenna for Multiband Wireless Communication Application

2020 ◽  
Vol 9 (8) ◽  
pp. 316-324
Keyword(s):  
Wireless Communication ◽  
Radiation Pattern ◽  
Current Distribution ◽  
Return Loss ◽  
Surface Current ◽  
Wireless Networking ◽  
Pin Diode ◽  
Rectangular Hole ◽  
Surface Current Distribution ◽  
Compact Antenna

This pioneering work suggests a reconfigurable multiband frequency antenna for applications in wireless networking The miniaturization and multi-band function of the mounted antenna is done by inserting a rectangular hole, and the reconfiguration of the frequency is achieved by utilizing two PIN diode switches. The ON and OFF state of the PIN diode determines the surface current distribution of the radiating patch resulting in the multiband resonance and reconfiguration of the proposed device. Application and analysis dependent on parameter of the antenna such as lack of return loss, VSWR, gain, and radiation pattern. The developed antenna is used for the intended application of wireless communication. Simulation is performed using Ansys HFSS.

scholarly journals A Modified Rectangular Mid-band Microstrip Slot Antenna for WLAN, WiFi and 5G Applications

2021 ◽  
Vol 23 (1) ◽  
Author(s):  
Ajay Thatere ◽  
◽  
Sachin Khade ◽  
Vipul Lande S ◽  
◽  
...  
Keyword(s):  
Dielectric Constant ◽  
Reflection Coefficient ◽  
Radiation Pattern ◽  
Current Distribution ◽  
Ground Plane ◽  
Surface Current ◽  
Slot Antenna ◽  
Current Gain ◽  
Wide Bandwidth ◽  
Left And Right

A modified rectangular Microstrip slot antenna for numerous applications like WLAN, Wi-Fi 5, satellite telecommunication and 5G application is portrayed. The proposed antenna has dimension of 25×30×1.6 mm3. The structure consists of partial ground and DGS. The proposed design is embedded on FR4 lossy substrate having dielectric constant of 4.3 and thickness of 1.6 mm. Two similar inverted L shape CLLR are introduced at left and right edge of the ground plane to improve current distribution and to achieve wide bandwidth. The results like reflection coefficient, surface current, gain, directivity, VSWR, impedance and radiation pattern are found up to the mark.

scholarly journals Design of Multiband E-Shaped Patch Antenna with Hexagonal Slot for WLAN Applications

2019 ◽  
Vol 12 (1) ◽  
pp. 37-41
Author(s):  
A. Pramod Kumar
Keyword(s):  
Dielectric Constant ◽  
Reflection Coefficient ◽  
Radiation Pattern ◽  
Parametric Study ◽  
Patch Antenna ◽  
Return Loss ◽  
Wireless Systems ◽  
Antenna Design ◽  
Ism Band ◽  
Antenna Performance

Abstract The objective of E-shaped patch antenna with hexagonal slot is to operate in the ISM band for different kind of applications, such as WLAN, GPS, and various modern wireless systems. The posit antenna is designed using FR4 substrate having a dielectric constant of 4.4 with a thickness of 1.6 mm. Probe feed technique is used for this antenna design. A parametric study was included to determine the effect of design approaches and the antenna performance. The realization of the designed antenna was analyzed in term of boost (gain), return loss, and radiation pattern. The design was upsurged to confirm the best achievable result. This antenna resonates at three different frequencies at 1.6 GHz, 3.24 GHz, and 5.6 GHz with a reflection coefficient less than -10 dB and VSWR<2.

scholarly journals Computation of antenna pattern correlation and MIMO performance by means of surface current distribution and\\ spherical wave theory

2006 ◽  
Vol 4 ◽  
pp. 33-39 ◽  
Author(s):  
O. Klemp ◽  
G. Armbrecht ◽  
H. Eul
Keyword(s):  
Channel Capacity ◽  
Current Distribution ◽  
Spherical Wave ◽  
Surface Current ◽  
Wave Theory ◽  
Antenna Pattern ◽  
Mimo Channel ◽  
Computational Technique ◽  
Surface Current Distribution ◽  
Pattern Correlation

Abstract. In order to satisfy the stringent demand for an accurate prediction of MIMO channel capacity and diversity performance in wireless communications, more effective and suitable models that account for real antenna radiation behavior have to be taken into account. One of the main challenges is the accurate modeling of antenna correlation that is directly related to the amount of channel capacity or diversity gain which might be achieved in multi element antenna configurations. Therefore spherical wave theory in electromagnetics is a well known technique to express antenna far fields by means of a compact field expansion with a reduced number of unknowns that was recently applied to derive an analytical approach in the computation of antenna pattern correlation. In this paper we present a novel and efficient computational technique to determine antenna pattern correlation based on the evaluation of the surface current distribution by means of a spherical mode expansion.

scholarly journals Circle Microstrip Antenna Simulation for Frequency 3.5 GHz

2021 ◽  
Vol 1 (1) ◽  
pp. 1-4
Author(s):  
Wildan Wildan ◽  
Dwi Astuti Cahyasiwi ◽  
Syah Alam ◽  
Mohd Azman Zakariya ◽  
Harry Ramza
Keyword(s):  
Dielectric Constant ◽  
Patch Antenna ◽  
Microstrip Antenna ◽  
Microstrip Line ◽  
Return Loss ◽  
Tangent Loss ◽  
Substrate Thickness ◽  
Total Radiation ◽  
Circular Patch Antenna ◽  
Working Frequency

This research proposed microstrip circular patch antenna simulation at a working frequency 3500 MHz. The antenna has been designed using a Duroid RT5880 substrate with dielectric constant (εr) = 2.2, substrate thickness (h) = 1.575 mm, and tangent loss = 0.0009 with microstrip line feeding. The simulation result, return loss value obtained -26.385, VSWR value 1.09, gain value 7.64 dBi, total radiation efficiency value -0.6489 dB, and bandwidth value 72 MHz (3468.8 MHz – 3541.9 MHz).

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