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.

S shaped hexaband frequency reconfigurable antenna

2020 ◽  
Vol 10 ◽  
Author(s):  
Poonam Thanki ◽  
Falguni Raval
Keyword(s):  
Mobile Phone ◽  
Reconfigurable Antenna ◽  
Pin Diode ◽  
Pin Diodes ◽  
Compact Size ◽  
Communication Devices ◽  
Frequency Reconfigurable Antenna

: This paper presents S shaped frequency reconfigurable antenna which gives six operating bands. The size of proposed antenna is 26×12 mm2.The FR4 substrate having thickness of 1.6 mm is used for this antenna. The proposed antenna resonates at six different frequencies i.e. at 2.76 GHz, at 2.98 GHz, at 4 GHz, at 4.6 GHz, at 4.96 GHz and at 5.28 GHz depending upon the ON/OFF states of PIN diodes. The lumped RLC elements are used in HFSS simulation in order to reconfigure the frequency of antenna. For switching, PIN diode are used in fabricated antenna for frequency reconfiguration to validate the simulated results. The compact size of proposed antenna is suitable for recent communication devices such as laptop, mobile phone and other electronics instruments. The proposed antenna shows good matching in the simulated and measured results.

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.

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.

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 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 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.

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