scholarly journals Design and Analysis of Reconfigurable Antenna for Wide Band Applications

2022 ◽  
Vol 2161 (1) ◽  
pp. 012073
Author(s):  
Sathuluri MallikharjunaRao ◽  
Thirumala SettyVennelaSrujana ◽  
Gurivinadagunta Bhuvana Bindu ◽  
Garlapatikotinagapavani
Keyword(s):  
Patch Antenna ◽  
Dynamic Environment ◽  
Wide Band ◽  
Reconfigurable Antenna ◽  
Pin Diode ◽  
Strip Line ◽  
Pin Diodes ◽  
Resonant Frequencies ◽  
Multiple Frequencies

Abstract The relevance of reconfiguration in a dynamic environment is to improve an antenna’s performance by allowing it to transition between multiple frequencies. In this paper, we designed a reconfigurable patch antenna and fed it by strip line feeding by placing 2 slots to obtain different resonant frequencies. The feature of reconfigurability is attained by using Pin Diodes. In our design, we take a 2 pin diode. The proposed Antenna can operate on different frequencies i.e. 2.88GHz, 5.5GHz, 10.8GHz and 11.1GHz with the efficiency of 90% and more at different conditions of the diodes. This analysis is done by using HFSS Software.

scholarly journals Dual-Band Reconfigurable Antenna for Polarization Diversity

2018 ◽  
Vol 2018 ◽  
pp. 1-7 ◽  
Author(s):  
Youngje Sung
Keyword(s):  
Ring Resonator ◽  
Dual Band ◽  
Reconfigurable Antenna ◽  
Pin Diode ◽  
Polarization Diversity ◽  
Pin Diodes ◽  
Resonant Frequencies ◽  
Polarized Waves ◽  
Ring Antenna ◽  
Left And Right

This paper proposes a dual-band reconfigurable square-ring antenna with a polarization diversity property. The proposed antenna consists of a square-ring resonator, two stubs with a shorting via, and two PIN diodes. The stub is positioned symmetrically to the left and right of the square-ring resonator, and the square-ring antenna connected to one of two stubs has a dual-band resonance. In this case, both resonant frequencies exhibit linear polarization (LP), and the two polarized waves are perpendicular to each other. The PIN diode selectively connects only one of the two stubs to the square-ring resonator. Thus, the polarization of the proposed antenna changes electrically at the two resonant frequencies. In addition, the frequency ratio (f2/f1) can be easily controlled by changing the length or width of the stub.

scholarly journals Design and Analysis of Frequency Reconfigurable Microstrip Patch antenna for Multi Band Operations using PIN Diodes

2019 ◽  
Vol 8 (12) ◽  
pp. 5026-5030
Keyword(s):  
Patch Antenna ◽  
Vital Role ◽  
Microstrip Patch Antenna ◽  
Reconfigurable Antenna ◽  
Pin Diode ◽  
Pin Diodes ◽  
Antenna Structure ◽  
Microstrip Patch ◽  
Current Path ◽  
Slotted Antenna

Multiband reconfigurable patch antenna plays a vital role in wireless communication applications. By changing the current path on the patch a multiband reconfigurable antenna can be achieved. A simple multiband frequency reconfigurable microstrip patch antenna is presented in this paper. The proposed antenna structure is simulated in CST microwave studio. This antenna operates between 1.3 to 5.6 GHz with more than fifteen different frequencies. The antenna is analyzed for four different configurations. The designed antenna is resonating at five different frequencies (1.45 GHz, 2.36 GHz, 3.09 GHz, 3.6 GHz and 5.45 GHz) when both PIN diodes are ON. When PIN diode D1 is ON and D2 is OFF the antenna is resonating at 1.4 GHz, 2.22 GHz, 2.5 GHz, 3.08 GHz and 3.59 GHz. When D1 is OFF and D2 is ON the antenna is resonating at 2.34 GHz, 3.2 GHz, 3.62 GHz and 5.38 GHz frequencies. The slotted antenna or when both PIN diodes are in OFF condition antenna is resonating at 2.22 GHz, 2.49 GHz, 3.21 GHz, 3.6 GHz and 5.42 GHz. For each configuration the antenna parameters like gain, VSWR, directivity and radiation patterns are analyzed.

scholarly journals Efficient Design of Micro Strip Patch Antenna for the Ultra Wideband (UWB) Applications

2020 ◽  
Vol 8 (5) ◽  
pp. 4517-4520
Keyword(s):  
Patch Antenna ◽  
Wide Band ◽  
Ultra Wideband ◽  
Ultra Wide Band ◽  
Strip Line ◽  
Efficient Design ◽  
Uwb Antennas ◽  
Feeding Technique ◽  
Wide Range ◽  
Uwb Applications

In this research paper a design of Microstip patch antenna for the ultra-wide band (UWB) applications is presented. Ultra wide band antennas has very wide band of operation which accommodates many communication frequencies as set by the federal commission of communication. The UWB antennas is based on the micro strip patch antenna concept and the design of the antenna is based on the stack antenna or multi-layer antenna. Stacking is used in designing for increasing the bandwidth of the antenna so stacking concept is good for the designing of the UWB antenna. The feeding used to feed the antenna is micro strip line feed. Micro strip line feeding technique is one of very popular feeding technique to feed the antenna because its fabrication is very simple. The proposed design is simulated in the CADFEKO software which is very useful for the design and analysis of a wide range of electromagnetic problem. It has many applications to simulate 3D electromagnetic circuit included antenna design, micro strip antenna and circuits. The simulation results shows the antenna bandwidth of 13.9 GHz from 2.6 to 16.5 GHz. So we can clearly say that the antenna is ultra-wide band in nature.

scholarly journals A Reconfigurable Polarization—Frequency Supershape Patch Antenna with Enhanced Bandwidth

Electronics ◽  
2020 ◽  
Vol 9 (7) ◽  
pp. 1166
Author(s):  
Anastasios Koutinos ◽  
Georgia Xanthopoulou ◽  
George Kyriacou ◽  
Michael Chryssomallis
Keyword(s):  
Dielectric Constant ◽  
Patch Antenna ◽  
Reconfigurable Antenna ◽  
Vertical Polarization ◽  
Pin Diodes ◽  
Rectangular Patch ◽  
Dissipation Losses

In this article a reconfigurable antenna for WLAN/WiMAX applications is presented. A super-shape radiator of an ellipsis shape is used to achieve wider intrinsic bandwidth compared to the classical rectangular patch antenna, while the dimensions remain comparable. The proposed antenna is fed at two points exciting both horizontal and vertical polarization but in different operating frequencies. To achieve wider bandwidth, as a whole but also for each polarization, the symmetrical feeding points for each excitation are also employed with a proper feeding network. PIN diodes are also used in the feeding network to provide the option of narrower bandwidth. The antenna substrate is Rogers RO4003C with dielectric constant εr = 3.55 and dissipation losses tanδ = 0.0027 with height h = 1.524 mm. The antenna operates in the range of 2.3 GHz to 2.55 GHz but, using the proposed procedure, it can be designed for different frequency ranges.

scholarly journals Reconfigurable Antenna using Micromechanical Actuation Switches for K and Ku-Band Applications

2019 ◽  
Vol 9 (2) ◽  
pp. 201-205
Keyword(s):  
Insertion Loss ◽  
Patch Antenna ◽  
Rf Mems ◽  
Reconfigurable Antenna ◽  
Resonant Frequencies ◽  
Mems Switches ◽  
Actuation Mechanism ◽  
Rf Mems Switches ◽  
Mechanical Actuation ◽  
Ku Band

In this paper, we have proposed a reconfigurable antenna using micro mechanical actuation switches for K and Ku-band applications. Overall two identical cantilever micro mechanical switches (S1 & S2 ) are used to design reconfigurable patch antenna. The switches are working by electrostatic actuation mechanism. With the switches, overall the antenna is offering four resonant frequencies based on the switches ON/OFF condition. The Micro mechanical switches are offering an isolation loss of -18.5dB and an insertion loss of -1dB. The switch requires a DC actuation voltages of 6V. The Proposed reconfigurable antenna is resonating at four different frequencies based on the different switching conditions of RF MEMS switches. If S1 & S2 both are ON the antenna is resonating at 16.9GHZ, if S1 -ON & S2 -OFF the antenna is resonating at 47.3GHZ & 59.1GHZ, if S1 -OFF & S2 -ON the antenna is resonating at 28.4GHZ, if S1 -OFF & S2 -OFF the antenna is resonating at 27.9GHZ

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.

A Frequency and Polarization Reconfigurable Dual-Patch Microstrip A Frequency and Polarization Reconfigurable Dual-Patch Microstrip

2021 ◽  
Vol 36 (2) ◽  
pp. 152-158
Author(s):  
Cong Bui ◽  
Thanh Dang ◽  
Minh Doan ◽  
Truong Nguyen
Keyword(s):  
Patch Antenna ◽  
Microstrip Patch Antenna ◽  
Antenna Design ◽  
Reconfigurable Antenna ◽  
Pin Diode ◽  
Varactor Diode ◽  
Ism Band ◽  
Microstrip Patch ◽  
Antenna Performance ◽  
Good Agreement

This paper proposes a reconfigurable microstrip patch antenna design for wireless ISM band applications. The antenna simultaneously uses PIN Diodes to switch between linear and circular polarization at 2.45 GHz and uses Varactor Diode to continuously tune the operating frequency from 1.73 GHz to 2.45 GHz. The antenna performance is characterized as a combination of ON/OFF state of PIN Diode and a bias voltage of Varactor Diode varying from 0.8V to 10V. A good agreement between simulation and measurement is obtained which validates the proposed method. The proposed frequency/polarization reconfigurable antenna is promising for various applications in wireless ISM band such as DCS (1710 – 1880 MHz), PCS (1850 – 1990 MHz), GSM 1800, GSM 1900, UMTS (1920 – 2170 MHz) and WiFi/Bluetooth (2.4 – 2.5 GHz).

Pattern and frequency reconfigurable antenna with diode loaded ELC resonator

2019 ◽  
Vol 12 (2) ◽  
pp. 163-175 ◽  
Author(s):  
Ghanshyam Singh ◽  
Binod K. Kanaujia ◽  
Vijay K. Pandey ◽  
Deepak Gangwar ◽  
Sachin Kumar
Keyword(s):  
Ring Resonator ◽  
Ground Plane ◽  
Impedance Bandwidth ◽  
Reconfigurable Antenna ◽  
Pin Diodes ◽  
Pattern Diversity ◽  
Low Profile ◽  
Closed Ring ◽  
Multiple Frequencies ◽  
Peak Gain

AbstractIn this work, a new compact, low profile, frequency, and end-fire pattern reconfigurable antenna is presented. The proposed antenna consists of four parasitic elements and an electric-inductive-capacitive (ELC) resonator enclosed with a closed ring resonator (CRR). The reconfigurability in the proposed antenna is achieved with the help of five PIN diodes (D1–D5) embedded on the top surface of the substrate. The diode (D1) is implanted between ELC and CRR resonators for frequency reconfigurability. The other four diodes (D2–D5) are implanted between the ground plane and four parasitic elements to control the electrical length of the ground plane to achieve pattern diversity. The ground plane and parasitic elements steer the primary omni-directional beam to bi-directional and uni-directional end-fire radiation at multiple frequencies. The proposed antenna exhibits multiband operation and end-fire pattern diversity depending upon the different states of PIN diodes. The overall size of the proposed antenna is 0.20λ0× 0.17λ0× 0.009λ0, where λ0 is calculated at the lowest resonance frequency. The impedance bandwidth of the antenna ranges from 1.45 to 26.22%, while peak gain varies from 0.86 to 3.86 dBi depending upon the state of operation. The measured results are in agreement with the simulated results, which confirm the frequency and pattern diversity performance of the antenna. The proposed antenna can be used in back-to-back repeater systems.

scholarly journals A Compact Frequency Reconfigurable Antenna for LTE Mobile Handset Applications

2015 ◽  
Vol 2015 ◽  
pp. 1-10 ◽  
Author(s):  
Munyong Choi ◽  
Hyunho Wi ◽  
Byeonggwi Mun ◽  
Yonghyun Yoon ◽  
Hyunwoo Lee ◽  
...  
Keyword(s):  
High Frequency ◽  
Low Frequency ◽  
Optimal Location ◽  
Total Efficiency ◽  
Reconfigurable Antenna ◽  
Pin Diode ◽  
Pin Diodes ◽  
Mobile Handset ◽  
State 1 ◽  
Frequency Reconfigurable Antenna

A compact (8 × 62 × 5 mm3; 2.48 cc) frequency reconfigurable antenna that uses electrical switching with PIN diodes is proposed for the low frequency LTE band (699 MHz–862 MHz), high frequency LTE band (2496 MHz–2690 MHz), GSM850/900 bands (824 MHz–960 MHz), and DCS/PCS/WCDMA bands (1710 MHz–2170 MHz). The penta-band PIFA is first designed for GSM850/900/DCS/PCS/WCDMA bands by using two slits and ground pins within a limited antenna volume (8 × 54.6 × 5 mm3; 2.18 cc). The frequency reconfigurable antenna based on this penta-band PIFA is thus proposed to additionally cover all LTE bands. The proposed antenna has two PIN diodes with an optimal location. For State 1 (PIN diode 1: ON state, PIN diode 2: OFF state), the proposed antenna covers the low frequency LTE band, DCS/PCS/WCDMA bands, and high frequency LTE band. For State 2 (PIN diode 1: OFF state, PIN diode 2: ON state), the antenna covers the GSM850/900 bands. Simulated and measured results show that the total efficiency of the proposed antenna was greater than 40% for all operating frequency bands.

scholarly journals Miniaturization of Strips loaded Hexagonal Microstrip Patch Antenna for Advanced Communication

2019 ◽  
Vol 8 (12) ◽  
pp. 2753-2757
Keyword(s):  
Patch Antenna ◽  
Coplanar Waveguide ◽  
Wide Band ◽  
Microstrip Patch Antenna ◽  
Ultra Wide Band ◽  
Radiation Characteristics ◽  
Resonant Frequencies ◽  
Microstrip Patch ◽  
X Band ◽  
Epoxy Material

A spiral fork shaped hexagonal micro strip patch antenna is designed to operate at different frequencies, which are in ultra-wide band range (3.1-10.6GHz). The newly presented antenna is simulated on a Flame Retardant - 4 (FR4) epoxy material with dielectric constant 4.4and overall size of structure is 28*28mm2 . Coplanar waveguide feeding (CPW) is used in this design for easy simulation. This proposed triband structure resonates at 1.36GHz, 5.74GHz and 8.8GHz. The proposed pentaband antenna resonates at 2.38GHz, 3.64GHz, 6.76GHz, 7.36GHz and 8.98GHz with corresponding impedance bandwidths are 200MHz, 70MHz, 170MHz, 520MHz and 420MHz. The peak gains at their resonant frequencies are 1.77dB, 2.45dB, 3.53dB, 4.54dB and 2.28dB respectively with good radiation characteristics. These antennas are suitable for S - , C - and X - band applications.

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