POLARIZATION RECONFIGURABLE ANTENNA THROUGH SWITCHABLE CPW FEEDING STRUCTURE

2015 ◽  
Vol 77 (10) ◽  
Author(s):  
Mohamed Nasrun Osman ◽  
Mohamad Kamal A. Rahim ◽  
Mohd Fairus Mohd Yusoff ◽  
Mohamad Rijal Hamid ◽  
Huda A. Majid ◽  
...  
Keyword(s):  
Circular Polarization ◽  
Patch Antenna ◽  
Planar Waveguide ◽  
Phase Delay ◽  
Reconfigurable Antenna ◽  
Left Hand ◽  
Circular Patch ◽  
Quarter Wavelength ◽  
Circular Patch Antenna ◽  
Feeding Structure

This paper presents the polarization reconfigurable circular patch antenna. The reconfigurability feature is realized through the alteration of the feeding network. The antenna consists of a circular patch as a radiator, and orthogonally fed by a co-planar waveguide (CPW) slotline which terminated with tapered transformer. The CPW slotline are interconnected with quarter wavelength phase delay slotline. Eight switches are placed at the CPW transmission slotline, to either activate or deactivate the phase delay slotline. Consequently, depending on the switch configurations, the polarization can be altered to the desired sense, either linear, right-hand circular or left-hand circular polarization.

scholarly journals A New Diminutive Octa Polarization Reconfigurable Circular Patch Antenna

2020 ◽  
Vol 9 (6) ◽  
pp. 775-779
Keyword(s):  
Circular Polarization ◽  
Patch Antenna ◽  
Prototype Model ◽  
Rf Switch ◽  
Left Hand ◽  
Circular Patch ◽  
Compact Size ◽  
Circular Patch Antenna ◽  
Polarization States ◽  
The Right

This proposes a new diminutive octa polarization reconfigurable circular patch antenna design. This new antenna can operate in eight different polarizing states (6 different angles of linear polarization and 2 circular polarization states) with the help of a reconfigurable probe feed network. The antenna comprises of a circular layer of radiation with four equally spaced slits at the boundary of the circular patch to obtain size reduction. The bias voltages of six pairs of PIN diodes are interval between each state. A 3 dB hybrid coupler and a RF switch are used to produce reconfiguration between circular polarization states of the right and left hand. The proposed antenna was designed using CST microwave studio, fabricated as a prototype model and tested which produces desired values for various parameters of antenna including compact size. The designed antenna operates within 2.4-2.5 GHz frequencies suitable for wireless applications

Stacked circular patch antenna with dual right/left hand circular polarization for wideband applications in X band

2009 ◽  
Vol 51 (6) ◽  
pp. 1419-1424 ◽  
Author(s):  
J. L. Masa-Campos ◽  
E. Casla Sanz ◽  
M. Sierra-Pérez ◽  
J. M. Fernandez
Keyword(s):  
Circular Polarization ◽  
Patch Antenna ◽  
Left Hand ◽  
Circular Patch ◽  
X Band ◽  
Circular Patch Antenna

scholarly journals Dual- Band Antenna for Wi-Fi and 5G Applications

2019 ◽  
Vol 9 (1S5) ◽  
pp. 130-131
Keyword(s):  
Circular Polarization ◽  
Linear Polarization ◽  
Patch Antenna ◽  
Return Loss ◽  
Axial Ratio ◽  
Band Width ◽  
Dual Band ◽  
Circular Patch ◽  
Dual Band Antenna ◽  
Circular Patch Antenna

In this communication, a circular patch antenna is reported for dual- band operation based on VIAs. Initially the patch is resonating at single band with Linear Polarization (LP), and the Circular Polarization (CP) is obtained by inserting semi circular cuts at the edges of circular patch. The second band is achieved by loading the vertical metallic VIAs along the circumference of the patch antenna. The reported antenna is working at 2.4 GHz (Wi-Fi) and 3.5 GHz (5G) bands with Return Loss Band Width (RLBW) of 4.83% and 10.37% respectively. The Axial Ratio (AR) bandwidth at 5G band is 2.38% (3.31- 3.39 GHz)

scholarly journals Circular Polarization of the Square, Circular, Triangle, and Hexagonal Microstrip Antenna

2020 ◽  
Vol 3 (1) ◽  
pp. 5
Author(s):  
Nurhayati Nurhayati ◽  
Paulen Aulia Lutfia ◽  
Raimundo Eider Figueredo Sobrinho ◽  
Alexandre Manicoba De Oliveira ◽  
João Francisco Justo Filho ◽  
...  
Keyword(s):  
Resonance Frequency ◽  
Circular Polarization ◽  
Patch Antenna ◽  
Microstrip Antenna ◽  
Return Loss ◽  
Axial Ratio ◽  
Patch Shape ◽  
Circular Patch ◽  
Hexagonal Shape ◽  
Circular Patch Antenna

Microstrip antenna with circular polarization can be applied for many applications. Some microstrip antenna with square, circular, triangular, and hexagonal shape has been designed to get return loss, axial ratio, and radiation performance. We compare twelve microstrip antenna by maintaining its substrate dimension, feeding shape, and outer patch dimension. Even though antenna has a circular patch, it doesn’t always produce circular polarization. From the simulation, we found that with add some structure, the antenna can reach multiband resonance from 1 to 6 GHz. The Circular patch antenna reached seven numbers of the multiband resonance frequency. The hexagonal patch antenna reaches the highest directivity as 9.53 dBi. The circular polarization is achieved for a square and Hexagonal patch shape with axial ratio value is 1.96 dB at 4 GHz and  1.26 dB at 4.1 GHz sequentially at phi 900 and theta 900. 

scholarly journals Polarization Reconfigurable Square Patch Antenna for Wireless Communications

2018 ◽  
Vol 7 (4) ◽  
pp. 103-108 ◽  
Author(s):  
M. Saravanan ◽  
M. J. S. Rangachar
Keyword(s):  
Wireless Communications ◽  
Wireless Communication ◽  
Circular Polarization ◽  
Linear Polarization ◽  
Patch Antenna ◽  
Axial Ratio ◽  
Reconfigurable Antenna ◽  
Left Hand ◽  
Right Hand ◽  
Peak Gain

In this paper, a single fed polarization reconfigurable antenna is proposed. The antenna consists of a radiating patch incorporated with a diagonal-shaped slot at its center. Four p-i-n diodes are used for polarization reconfiguration. The p-i-n diodes are placed in diagonal slot region. The proposed antenna is designed to operate in three states – linear polarization (LP), left-hand circular polarization (LHCP) and right-hand circular polarization (RHCP) by biasing corresponding p-i-n diodes. The antenna gives measured peak gain of 6.2 dBi for LP state and 5.82 dBic for both RHCP and LHCP states. It also achieves 3-dB axial ratio bandwidth of 5.95% for both RHCP and LHCP configurations. The antenna finds application in areas of modern wireless communication.

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