scholarly journals Frequency Reconfigurable Antenna using PIN Diodes

2019 ◽  
Vol 9 (1S5) ◽  
pp. 66-70
Keyword(s):  
Antenna System ◽  
Reconfigurable Antenna ◽  
Multiple Frequency ◽  
Pin Diodes ◽  
Wireless Applications ◽  
System A ◽  
Ansoft Hfss ◽  
System Requirements ◽  
Simulation Results ◽  
Frequency Reconfigurable Antenna

With the increase in wireless applications, there is a need for compact antennas that adapt their behavior with changing system requirements or environmental conditions. Here adapt implies the antenna should be able to alter operating frequencies, impedance bandwidths, polarizations, radiation patterns. These all features are provided by the “Reconfigurable antenna”. The important feature of reconfigurable antenna is that, they provide the same throughput as a multi-antenna system. A compact frequency reconfigurable antenna is designed with the aid of Ansoft HFSS that provides multiple frequency bands. This is achieved by using electrical switches such as PIN diodes. Depending on state of switches different operating frequencies are obtained. The switches placed on the antenna elements are powered wirelessly by the antenna itself. The design, geometries and simulation results of a frequency reconfigurable antenna are presented in this report. Further advancements are to be done for this structure to achieve polarization and radiation pattern re-configurability.

scholarly journals Design and Realization of a Frequency Reconfigurable Multimode Antenna for ISM, 5G-Sub-6-GHz, and S-Band Applications

2021 ◽  
Vol 11 (4) ◽  
pp. 1635
Author(s):  
Adnan Ghaffar ◽  
Xue Jun Li ◽  
Wahaj Abbas Awan ◽  
Syeda Iffat Naqvi ◽  
Niamat Hussain ◽  
...  
Keyword(s):  
Superior Performance ◽  
Dual Band ◽  
Reconfigurable Antenna ◽  
Performance Parameters ◽  
Pin Diodes ◽  
Compact Size ◽  
Simulation Results ◽  
Strong Candidate ◽  
Frequency Reconfigurable Antenna ◽  
Strong Agreement

This paper presents the design and realization of a compact size multimode frequency reconfigurable antenna. The antenna consists of a triangular-shaped monopole radiator, originally inspired from a rectangular monopole antenna. Slots were utilized to notch the desired frequency while the PIN diodes were utilized to achieve frequency reconfigurability. The antenna can operate in wideband, dual-band, or tri-band mode depending upon the state of the diodes. To validate the simulation results, a prototype was fabricated, and various performance parameters were measured and compared with simulated results. The strong agreement between simulated and measured results along with superior performance as compared to existing works in the literature makes the proposed antenna a strong candidate for ISM, 5G-sub-6 GHz, and S-band applications.

scholarly journals Frequency reconfigurable monopole antenna with DGS for ISM band applications

2018 ◽  
Vol 69 (4) ◽  
pp. 293-299 ◽  
Author(s):  
Boddapati T. P. Madhav ◽  
Shaik Rajiya ◽  
Badugu P. Nadh ◽  
Munuswami S. Kumar
Keyword(s):  
Dielectric Constant ◽  
Wireless Communication ◽  
Transmission Line ◽  
Ground Plane ◽  
Reconfigurable Antenna ◽  
Pin Diodes ◽  
Microstrip Transmission Line ◽  
Ism Band ◽  
Frequency Reconfigurable Antenna ◽  
Antenna Model

Abstract In this article a compact frequency reconfigurable antenna is presented for wireless communication applications of industrial, scientific and medical band (ISM). The proposed antenna model is designed with the dimensions of 58mm×48 mm on FR4 epoxy of dielectric constant 4.4 with the thickness of 0.8 mm. The proposed antenna consists of defected T-shape ground plane, which acts as a reflector. In the design of frequency reconfigurable antenna, BAR 64-02V PIN diodes are used as switching elements and antenna is fed by microstrip transmission line. The proposed antenna can switch at different frequencies (2.5 GHz, 2.3 GHz and 2.2 GHz) depending on the biasing voltage applied to the PIN diodes. The current antenna showing VSWR < 2 in the operating band and providing peak realized gain of 3.2 dBi. A good matching obtained between expected and the measured results.

scholarly journals A frequency reconfigurable antenna with Bluetooth, Wi-Fi and WLAN notch band characteristics

2018 ◽  
Vol 7 (2.7) ◽  
pp. 127 ◽  
Author(s):  
A Vamseekrishna ◽  
B T P Madhav
Keyword(s):  
Dielectric Constant ◽  
Loss Tangent ◽  
Coplanar Waveguide ◽  
Ground Plane ◽  
Substrate Material ◽  
Reconfigurable Antenna ◽  
Pin Diodes ◽  
Notch Band ◽  
Frequency Reconfigurable Antenna

A compact coplanar waveguide fed reconfigurable antenna with three notch bands are presented in this paper. Proposed antenna reconfigurability is acquired by placing bar6404 PIN diodes in the S-shaped ground plane in right to left mode and left to right mode. By switching the diode, reconfigurability achieved for three different operations. The substrate material for the proposed antenna is FR4 with dielectric constant 4.4 and loss tangent 0.02. The overall dimension of the reconfigurable antenna is around 30×26mm2. It is being observed in this work for the cause of each individual slot on notch band characteristics. The measured gain for the designed reconfigurable antenna is quite stable at operating frequencies except notch bands. The proposed antenna is suitable for practical wideband applications with notching.

A Novel Design of Frequency Reconfigurable Antenna for UWB Application

Frequenz ◽  
2016 ◽  
Vol 70 (9-10) ◽  
Author(s):  
Xiaolin Yang ◽  
Ziliang Yu ◽  
Zheng Wu ◽  
Huajiao Shen
Keyword(s):  
Frequency Band ◽  
Dual Band ◽  
Reconfigurable Antenna ◽  
Pin Diodes ◽  
Notched Band ◽  
Uwb Applications ◽  
Novel Design ◽  
Frequency Reconfigurable Antenna

AbstractIn this paper, we present a novel frequency reconfigurable antenna which could be easily operate in a single notched-band (WiMAX (3.3–3.6 GHz)) UWB frequency band, another single notched-band (WLAN (5–6 GHz)) UWB frequency band and the dual band-notched UWB frequency band (the stopband covers the WiMAX (3.3–3.6 GHz) and WLAN (5–6 GHz)). The reconfigurability is achieved by changing the states of PIN diodes. The simulated results are in agreement well with the measured results. And the measured patterns are slightly changed with antenna reconfiguration. The proposed antenna is a good candidate for various UWB applications.

Frequency Reconfigurable Antenna for Deca-Band 5 G/LTE/WWAN Mobile Terminal Applications

Frequenz ◽  
2018 ◽  
Vol 72 (5-6) ◽  
pp. 167-172
Author(s):  
Lingsheng Yang ◽  
Biyu Cheng ◽  
Hongting Jia
Keyword(s):  
Broad Band ◽  
Mobile Terminal ◽  
Antenna Element ◽  
Reconfigurable Antenna ◽  
Antenna Gain ◽  
Radiation Characteristics ◽  
Pin Diodes ◽  
The Future ◽  
Frequency Reconfigurable Antenna

AbstractIn this paper, a frequency reconfigurable antenna for 5 G/LTE/WWAN mobile terminal applications is presented. The proposed antenna consists of a radiation element which is folded on a dielectric cuboid. Four PIN diodes located on the antenna element are used for frequency reconfigration. By controlling the states of four PIN diodes with an 8-bit microcontroller, a broad band which can cover deca-band as LTE700/2300/2500, GSM850/900/1800/1900, UMTS 2100, WLAN2400 and the future 5 G or LTE3600 is obtained with a compacted size of 40×8×5mm3. The antenna gain, efficiency and radiation characteristics are also shown.

scholarly journals DESIGN AND ANALYSIS OF T-STUB U-SLOT NOTCH BAND FREQUENCY RECONFIGURABLE ANTENNA USING PARAMETRIC ANALYSIS FOR WIRELESS COMMUNICATION APPLICATIONS

2020 ◽  
Vol 7 (7) ◽  
pp. 15-20
Author(s):  
B.Siva Prasad ◽  
P. Mallikarjuna Rao
Keyword(s):  
Parametric Analysis ◽  
Coplanar Waveguide ◽  
Antenna Design ◽  
Reconfigurable Antenna ◽  
Pin Diodes ◽  
Band Frequency ◽  
Notch Band ◽  
Feed Network ◽  
Simulation Results ◽  
Efficient Power

The design and analysis of a T-Stub U-Slot Frequency Reconfigurable Notch band antenna is considered in the present work using Coplanar Waveguide feed network for an efficient power transfer to improve the bandwidth characteristics of the antenna. The designed antenna has a dimension of 24X21X1.6 mm with FR4 substrate having a permittivity of 4.4. The proposed antenna consists of a T-Stub and U-Slots which are used to enhance the performance characteristics of the antenna. The reconfigurability is achieved by placing PIN diodes at T-Stub and U-Slots of the antenna design. The designed antenna is more suitable for WLAN, Wi-Fi, LTE and Bluetooth applications. Simulation results are obtained using CST tool and the same are presented at the end.

scholarly journals DUAL-BAND RECONFIGURABLE MIMO ANTENNA FOR WIRELESS APPLICATIONS

2021 ◽  
Vol 25 (3) ◽  
pp. 1-9
Author(s):  
Abdullah A. Jabber ◽  
◽  
Raad H. Thaher ◽  
Keyword(s):  
Coupling Effect ◽  
Mimo System ◽  
Dual Band ◽  
Reconfigurable Antenna ◽  
Pin Diode ◽  
Wireless Devices ◽  
Resonant Frequencies ◽  
Mimo Antenna ◽  
Wireless Applications ◽  
Simulation Results

This article presents design and simulation of a new compact four-element dual-band MIMO frequency reconfigurable antenna that can be reconfigured for WiMAX and LTE applications. The antenna includes four elements at the same FR4 substrate with an optimized overall size of 65x65x1.6 mm3 and an optimized partial GND plane of 30x11.125 mm2. The reconfiguration rate is between 2.41 and 3.99 GHz that can cover the WiMAX and LTE wireless devices by applying just one RF (PIN) switch to change the operating frequency. The antenna operates on the two states of the PIN diode under its two states ON and OFF with (2.7 GHz, and 2.8 GHz) resonant frequencies respectively. The proposed antenna produces acceptable simulation results for the MIMO system by achieving gain from (3-7.2) dBi, less than -14.5 dB coupling effect, less than 0.28 envelope correlation coefficient, and diversity gain range from 8.4-10.

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