Active Reconfigurable Ultra-Wideband Antenna With Complementary Frequency Notched and Narrowband Response

Saha, Chinmoy; Siddiqui, Jawad Y.; Freundorfer, A.P.; Shaik, Latheef A.; Antar, Yahia M. M.

doi:10.1109/access.2020.2997933

Cited by 23 publications

(14 citation statements)

References 29 publications

(20 reference statements)

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“…According to the FCC report, a UWB signal should occupy at least 500 MHz of the spectrum or equivalently has a minimal fractional bandwidth of 20% [7]. In the design of UWB systems, efficient integration is targeted with the other wireless technologies [8,9]. Moreover, considerable utilization of the acceptable power level and the available bandwidth is one of the key challenges to generate UWB pulses with high spectral and power efficiencies while respecting the FCC spectral constraints.…”

Section: Ultra-wide Band Over Fiber System 21 System Descriptionmentioning

confidence: 99%

Radio Optical Network Simulation Tool (RONST)

Abdelhak¹,

Kamel²,

Hafez³

et al. 2022

Computers, Materials &Amp; Continua

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This paper presents a radio optical network simulation tool (RONST) for modeling optical-wireless systems. For a typical optical and electrical chain environment, performance should be optimized concurrently before system implementation. As a result, simulating such systems turns out to be a multidisciplinary problem. The governing equations are incompatible with co-simulation in the traditional environments of existing software (SW) packages. The ultra-wideband (UWB) technology is an ideal candidate for providing high-speed short-range access for wireless services. The limited wireless reach of this technology is a significant limitation. A feasible solution to the problem of extending UWB signals is to transmit these signals to endusers via optical fibers. This concept implies the need for the establishment of a dependable environment for studying such systems. Therefore, the essential novelty of the proposed SW is that it provides designers, engineers, and researchers with a dependable simulation framework that can accurately and efficiently predict and/or optimize the behavior of such systems in a single optical-electronic simulation package. Furthermore, it is supported by a strong mathematical foundation with integrated algorithms to achieve broad flexibility and low computational cost. To validate the proposed tool, RONST was deployed on an ultra-wideband over fiber (UWBoF) system. The bit error rate (BER) has been calculated over a UWBoF system, and there is good agreement between the experimental and simulated results.

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Section: Ultra-wide Band Over Fiber System 21 System Descriptionmentioning

confidence: 99%

Radio Optical Network Simulation Tool (RONST)

Abdelhak¹,

Kamel²,

Hafez³

et al. 2022

Computers, Materials &Amp; Continua

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“…The second way is to adopt reconfigurable ultra‐wideband/NB antenna structures. In this category, a single antenna element switches its operation between UWB or NB antenna operating modes 19–24 . The NB antenna can also adopt the reconfiguration mechanism to switch between various operating bands.…”

Section: Introductionmentioning

confidence: 99%

“…In this category, a single antenna element switches its operation between UWB or NB antenna operating modes. [19][20][21][22][23][24] The NB antenna can also adopt the reconfiguration mechanism to switch between various operating bands. The third way is using integrated ultra-wideband and NB antenna structures.…”

Section: Introductionmentioning

confidence: 99%

A reconfigurable integrated 4‐port UWB and NB antenna system for cognitive radio application

Nella

Vattiprolu

Saha

et al. 2021

Int J RF Mic Comp-Aid Eng

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A frequency reconfigurable 4‐port integrated ultra‐wideband and narrowband antenna structure for cognitive radio application is reported in this article. The proposed structure comprises four distinct antennas integrated on FR‐4 substrate of dimensions 42 × 42 × 1.6 mm. The first antenna, named as ANT‐1, is a CPW fed UWB antenna exhibiting −10 dB impedance bandwidth from 3 to 11 GHz, which includes the FCC unlicensed band ranging from 3.1 to 10.6 GHz. The remaining three antennas, named as ANT‐2, ANT‐3, and ANT‐4, respectively, are frequency reconfigurable narrowband antennas. Each narrowband antenna is incorporated with a varactor diode to obtain a fine frequency tuning. The first narrowband antenna (ANT‐2) covers a mid‐frequency band from 5.35 to 8.2 GHz. The second narrowband antenna (ANT‐3) attains a lower‐band from 3.1 to 5.375 GHz while the third narrowband antenna (ANT‐4) achieves an upper band ranging from 8 to 10.8 GHz. Simulated transmission coefficients are less than −16 dB between the antennas. ANT‐1, 2, 3, and 4 accomplish simulated maximum peak gains of 4.92, 3.4, 2.9, and 3.2 dBi, respectively. The proposed structure is fabricated to validate the simulation results. The measured reflection and transmission coefficient results are analyzed with the simulation results revealing a good matching.

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“…The use of loop antennas has been employed for many years, and some works have described the proper operation of this kind of radiator [5,6] for a circular geometry. Some recent publications demonstrate the use of several techniques to create frequency reconfigurable antennas, such as slot-lines [7,8], annular rings [9], split-ring resonators [10,11], or even the complement of a slot-ring combination [12,13]. However, these approaches carry out the excitation of a few resonances, reaching no more than three useful bands.…”

Section: Introductionmentioning

confidence: 99%

Directive Multiband Antenna Based on Rectangular Loop Array and Dumbbell-Shaped Slot Radiator

Tirado‐Méndez

Jardón‐Aguilar

Flores‐Leal

et al. 2021

Sensors

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In this article, a combination of rectangular loop array and slot radiator for multiband applications is presented. The antenna is configured by arranging, concentrically, a set of rectangular loop radiators excited by electromagnetic coupling provided by a dumbbell slot. The size of the loops is calculated to obtain the desired resonant frequencies, which are almost independent of the adjacent rings. The exciting slot is designed to operate in a wideband frequency range to cover the upper desired resonance. In addition, to obtain directive radiation patterns, a reflector shaped like a box is introduced, giving a stable gain, radiation pattern shape, and port matching at the selected frequencies. The configuration presents great results, since to the authors’ knowledge, even a similar configuration given in the open literature presents some disadvantages compared to this one; moreover, not just any structure can be employed as the resonating elements, obtaining multiband behavior at the same time.

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Active Reconfigurable Ultra-Wideband Antenna With Complementary Frequency Notched and Narrowband Response

Cited by 23 publications

References 29 publications

Radio Optical Network Simulation Tool (RONST)

Radio Optical Network Simulation Tool (RONST)

A reconfigurable integrated 4‐port UWB and NB antenna system for cognitive radio application

Directive Multiband Antenna Based on Rectangular Loop Array and Dumbbell-Shaped Slot Radiator

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