MoM-GEC Modeling of Gap Discontinuity for The Optimization of PIN Diode Dimension Used in 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.

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Compact single/multi bands frequency reconfigurable antenna using PIN diode controlled meta-surface

2017 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting ◽

10.1109/apusncursinrsm.2017.8072415 ◽

2017 ◽

Author(s):

Ahmed E. Zahran ◽

Mahmoud A. Abdalla

Keyword(s):

Reconfigurable Antenna ◽

Pin Diode ◽

Frequency Reconfigurable Antenna

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Design and Realization of an UHF Frequency Reconfigurable Antenna for Hybrid Connectivity LPWAN and LEO Satellite Networks

Sensors ◽

10.3390/s21165466 ◽

2021 ◽

Vol 21 (16) ◽

pp. 5466

Author(s):

Abdellatif Bouyedda ◽

Bruno Barelaud ◽

Laurent Gineste

Keyword(s):

Low Power ◽

Satellite Communication ◽

Low Earth Orbit ◽

Satellite Networks ◽

Equivalent Model ◽

Reconfigurable Antenna ◽

Pin Diode ◽

Area Network ◽

Wide Area Network ◽

Frequency Reconfigurable Antenna

UHF satellite communication for Internet of Things (IoT) technology is rapidly emerging in monitoring applications as it offers the possibility of lower-costs and global coverage. At the present time, Low Power Wide Area Network (LPWAN) solutions offer low power consumption, but still suffer from white zones. In this paper, the authors propose an UHF frequency reconfigurable Antenna for hybrid connectivity LoRaWAN (at 868 MHz) and UHF satellite communication (Tx at 401 MHz and Rx at 466 MHz) with the Low Earth Orbit (LEO) Kineis constellation. The antenna is based on a meandered line structure loaded with lumped components and a PIN diode to control the antenna resonant frequencies. It resonates at 401 and 868 MHz when the PIN diode is forward-biased (ON state) and 466 MHz in reverse-biased configuration (OFF state). The antenna is designed inside the enclosure with the presence of all the parts of the connected device. The results of EM simulations and parametric studies on the values of the lumped components and the PIN diode equivalent model, which are obtained with HFSS, are presented. The antenna is prototyped and has dimensions of 78 mm × 88 mm × 1.6 mm. The paper proposes a fast and practical method to reduce time development and compensate the frequency shift between measurement and simulation.

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S shaped hexaband frequency reconfigurable antenna

International Journal of Sensors Wireless Communications and Control ◽

10.2174/2210327910666200221125128 ◽

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.

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