Design of Frequency Reconfigurable Multiband Meander Antenna Using Varactor Diode for Wireless Communication

Rouissi, Ines; Floc'H, Jean Marie; Trabelsi, Hafedh

doi:10.14569/ijacsa.2017.080324

Cited by 8 publications

(3 citation statements)

References 12 publications

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“…To demonstrate the validity of the proposed antenna, a comparison with another existing model in the literature is presented in Table 5. The summarized data reveal that the proposed antenna offers better reconfigurable operating frequency and wide bandwidth compared to the other antennas designed in [24], [25]. It can also be observed from Table 5, the proposed antenna has the better gain than the work reported in [24]- [27], moreover, the size of our antenna is very small which is an advantage in the design and conception of motherboards.…”

Section: Experimental Validationmentioning

confidence: 60%

Frequency reconfigurable circular microstrip patch antenna with slots for cognitive radio

2022

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In this paper, a novel multi-frequency microstrip antenna with complementary ring slot resonator (CRSR) structure that satisfies Bluetooth, worldwide interoperability for microwave access (WiMAX), and wireless local area network (WLAN) applications is proposed. The conventional antenna consists of a circular microstrip patch at a resonance frequency band of 2.5 GHz. By loading two CRSR at the radiating element, three operating frequency bands 2.5 GHz, 3.6 GHz, and 5.2 GHz are achieved. The operational bands covered by the antenna are Bluetooth 2.5 GHz, WiMAX 3.6 GHz, and WLAN 5.2 GHz. The insertion of CRSR to patch antenna has made it possible to compact and simple design, and miniaturized antenna for cognitive radio. Moreover, the directivity of the proposed antenna is adequate with acceptable radiation properties and perfectly matches with the simulated and measured results.

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Section: Experimental Validationmentioning

confidence: 60%

Frequency reconfigurable circular microstrip patch antenna with slots for cognitive radio

2022

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“…Tunable varactor diodes are usually used to design electrically frequency reconfigurable antenna [12]. In the literature [13], [14], various microstrip reconfigurable antennas using varactor diodes have been reported. The reference antenna (RA) subject of this investigation has been studied and well reported in [15].…”

Section: Introductionmentioning

confidence: 99%

Design and Analysis of Frequency Reconfigurable Antenna Embedding Varactor Diodes

Iftissane¹,

Belrhiti²,

Bri³

et al. 2019

Adv. sci. technol. eng. syst. j.

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In this paper, we present a broadband frequency tunable antenna embedding varactor diodes. The reference antenna structure is a square antenna of patch dimensions [39,2 × 39,2] mm², operating at a single resonance frequency 2.45GHz. The recommended procedure to achieve the frequency shifting is to etch rectangular slots on the patch and to embed two varactor diodes with different values in the etched slots. When the integrated diodes have the same values, the simulated results of the proposed structure show good frequency flexibility by covering the [2.5-2.88] GHz band with reflection coefficient value (-36 dB). To improve the frequency agility of the proposed antenna and its performances, the embedding varactor diodes are separately optimized. The optimized antenna geometry and the integration of the varactor diodes positions enhance the performances of the proposed antenna and thus exploit the frequency band which is not covered by the reference antenna. Therefore, the obtained results indicate an improved tuning frequency behavior of the designed antenna which will be adopted to the dynamic changes of the environment allowing a good exploitation of the frequency spectrum.

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“…At present, the meander delay systems (MDSs) are widely used in electronic devices and equipment for signal synchronization [1,2] and filtering [3]. Moreover, meander delay systems are frequently applied as specific meander structures for small-sized antennas [4,5], resonators [6], and other devices [7].…”

Section: Introductionmentioning

confidence: 99%

Delay Systems Synthesis using Multi-Layer Perceptron Network

et al. 2018

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The aim of this paper is to accelerate development and investigation of the delay systems. The computational time for investigation of particular design of delay system may take from several minutes up to several days. To achieve the required constructional parameters of the system, the iterative calculations usually should be repeated many times. In this paper, an artificial neural network is proposed to be used as the universal approximator for solving mathematical problems of delay system investigation instead of usual analytical and numerical techniques. The application of a multi-layer perceptron is proposed for approximation of solution space with discrete estimates, which were initially received by application of numerical techniques. Different structures of the multi-layer perceptron were tested for approximation. The difference between delay systems synthesis, which was estimated using numerical techniques and trained multi-layer perceptron did not exceed 5% for any of the six design parameter values. The execution time for estimating single delay system was reduced from 240 s to 20 ms. Such fast estimation of design parameters enables performing delay system analysis and design in real time, preserving time for structure visualization in 3D or virtual reality environment.

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Design of Frequency Reconfigurable Multiband Meander Antenna Using Varactor Diode for Wireless Communication

Cited by 8 publications

References 12 publications

Frequency reconfigurable circular microstrip patch antenna with slots for cognitive radio

Frequency reconfigurable circular microstrip patch antenna with slots for cognitive radio

Design and Analysis of Frequency Reconfigurable Antenna Embedding Varactor Diodes

Delay Systems Synthesis using Multi-Layer Perceptron Network

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