A cylindrical reconfigurable antenna technology with full hemispherical coverage

2017 ◽  
Author(s):  
Gregory Kiesel ◽  
Efstrateos Strates
Keyword(s):  
Reconfigurable Antenna ◽  
Hemispherical Coverage

scholarly journals Performance of Reconfigurable Antenna Fabricated on Flexible and Nonflexible Materials for Band Switching Applications

Energies ◽  
2021 ◽  
Vol 14 (9) ◽  
pp. 2553
Author(s):  
B. R. Sanjeeva Reddy ◽  
Naresh K. Darimireddy ◽  
Chan-Wang Park ◽  
Abdellah Chehri
Keyword(s):  
Relative Permittivity ◽  
Ground Layer ◽  
Reconfigurable Antenna ◽  
Textile Antenna

In this article, a novel frequency slot-based switchable antenna fabricated on flexible and nonflexible materials is presented for suitable reconfigurable radiations of Bluetooth, WiMAX, and upper WLAN applications. Initially, the performance of this structure was simulated using a CSTTM simulator and evaluated experimentally using a nonflexible FR4 structure. The same antenna was implemented on a flexible (jean) substrate with a relative permittivity of 1.7. The proposed textile antenna prototypes were fabricated by optimal dimensions of an E-shaped slot with a variation on the shape of the ground layer, integrated using a crossed T-shaped strip with ON/OFF switchable state operations. The proposed antenna prototype is compact (20 × 20 mm2), providing switchable radiations with tri bands, has frequencies ranged at 2.36–2.5 GHz for Bluetooth, 3.51–3.79 GHz and 5.47–5.98 GHz for the distinct bands of WiMAX and WLAN, respectively, as well as part of UWB operations.

scholarly journals A Wideband Non-Uniform Metasurface-Based Circularly Polarized Reconfigurable Antenna

IEEE Access ◽  
2021 ◽  
Vol 9 ◽  
pp. 42325-42332
Author(s):  
Huy Hung Tran ◽  
Cong Danh Bui ◽  
Nghia Nguyen-Trong ◽  
Truong Khang Nguyen
Keyword(s):  
Reconfigurable Antenna ◽  
Circularly Polarized

Concentric Ring Structured Reconfigurable Antenna using MEMS Switches for Wireless Communication Applications

2021 ◽  
Author(s):  
G Ram Prasad ◽  
B T P Madhav ◽  
P Pardhasaradhi ◽  
Y Usha Devi ◽  
B Prudhvi Nadh ◽  
...  
Keyword(s):  
Wireless Communication ◽  
Reconfigurable Antenna ◽  
Concentric Ring ◽  
Mems Switches

scholarly journals Design and Realization of a Frequency Reconfigurable Antenna with Wide, Dual, and Single-Band Operations for Compact Sized Wireless Applications

Electronics ◽  
2021 ◽  
Vol 10 (11) ◽  
pp. 1321
Author(s):  
Wahaj Abbas Awan ◽  
Syeda Iffat Naqvi ◽  
Wael Abd Ellatif Ali ◽  
Niamat Hussain ◽  
Amjad Iqbal ◽  
...  
Keyword(s):  
Wireless Local Area Network ◽  
Local Area Network ◽  
Single Band ◽  
Dual Band ◽  
Operating Frequency ◽  
Reconfigurable Antenna ◽  
Area Network ◽  
Wireless Applications ◽  
Operating Modes ◽  
Compact Size

This paper presents a compact and simple reconfigurable antenna with wide-band, dual-band, and single-band operating modes. Initially, a co-planar waveguide-fed triangular monopole antenna is obtained with a wide operational frequency band ranging from 4.0 GHz to 7.8 GHz. Then, two additional stubs are connected to the triangular monopole through two p-i-n diodes. By electrically switching these p-i-n diodes ON and OFF, different operating frequency bands can be attained. When turning ON only one diode, the antenna offers dual-band operations of 3.3–4.2 GHz and 5.8–7.2 GHz. Meanwhile, the antenna with single-band operation from 3.3 GHz to 4.2 GHz can be realized when both of the p-i-n diodes are switched to ON states. The proposed compact size antenna with dimensions of 0.27λ0 × 0.16λ0 × 0.017λ0 at the lower operating frequency (3.3 GHz) can be used for several wireless applications such as worldwide interoperability for microwave access (WiMAX), wireless access in the vehicular environment (WAVE), and wireless local area network (WLAN). A comparative analysis with state-of-the-art works exhibits that the presented design possesses advantages of compact size and multiple operating modes.

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