A miniaturized multiband reconfigurable fractal slot antenna for GPS/GNSS/Bluetooth/WiMAX/X-band applications

Ali, Tanweer; Fatima, Nikhat; Biradar, Rajashekhar C.

doi:10.1016/j.aeue.2018.07.017

Cited by 42 publications

(15 citation statements)

References 18 publications

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“…The telemetry data from a continuously jammed drone may never be retrieved if the recorded data does not leave the drone, and the attacker destroys the evidence. When sensing a potential attack, a drone could enter an emergency communicatio ns mode in which it falls back to alternate methods of transmitting data such as 3G, SMS, or WiMAX (Ali, Fatima, & Biradar, 2018). With additional components, the drone could shift to the use of an Automatic Gain Controller (AGC), which varies the gain of the amplifier to isolate weaker signals and avoid saturation (Akos, 2012).…”

Section: Countermeasuresmentioning

confidence: 99%

A Framework for Sensing Radio Frequency Spectrum Attacks on Medical Delivery Drones

Kulp

Mei

2020

2020 IEEE International Conference on Systems, Man, and Cybernetics (SMC)

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Drone susceptibility to jamming or spoofing attacks of GPS, RF, Wi-Fi, and operator signals presents a danger to future medical delivery systems. A detection framework capable of sensing attacks on drones could provide the capability for active responses. The identification of interference attacks has applicability in medical delivery, disaster zone relief, and FAA enforcement against illegal jamming activities. A gap exists in the literature for solo or swarm-based drones to identify radio frequency spectrum attacks. Any nondelivery specific function, such as attack sensing, added to a drone involves a weight increase and additional complexity; therefore, the value must exceed the disadvantages. Medical delivery, high-value cargo, and disaster zone applications could present a value proposition which overcomes the additional costs. The paper examines types of attacks against drones and describes a framework for designing an attack detection system with active response capabilities for improving the reliability of delivery and other medical applications.

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Section: Countermeasuresmentioning

confidence: 99%

A Framework for Sensing Radio Frequency Spectrum Attacks on Medical Delivery Drones

Kulp

Mei

2020

2020 IEEE International Conference on Systems, Man, and Cybernetics (SMC)

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“…"A miniaturized multi-band slotted MPA with the size of 25 25 is analyzed for wireless applications," according to [16], despite the fact that it characterized four bands. A compact UWB-printed slot antenna is configured in [17] with a size of 25 x 28 mm for the implementation of extra Bluetooth, GSM, and GPS bands. The size-reduced, multi-band, evolvable, haphazardly slotted MPA is presented in [18] with a size of 25 x 28 for WiMAX/GPS/ Bluetooth /GNSS/ X-band applications.…”

Section: Introductionmentioning

confidence: 99%

High Gain Miniaturized Multi-band Microstrip Patch Antenna Using Slot-Cutting Techniques for C, and X Band Applications

2023

PSEN

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This research paper bestows a rectangular slot-loaded microstrip antenna in possession of DGS, which may give multi-band and the highest gain for C-band, X-band, and Ku-band applications. The distinct antenna structure is simulated through HFSS 13.0 simulation software for the illustrative investigation of enhanced gain. The newborn evolution of the advancement of wireless internet means of approach is concerned with the insistence on multi-band antennas. The investigation of nine-band frequency antennas is an achiever of 6.0350 GHz (Global Navigation Satellite System (GNSS)), 6.7950 GHz (Satellite TV), 7.46 GHz (Long-distance Communication), 8.5050 GHz (Terrestrial Broadcast Radar), 11.45 GHz (Space Communication), 13.35 GHz (detector), 15.06 GHz (Military), 17.24 GHz (Aerospace), and 19.05 GHz (Astronomical observation). The multi-band aspect is accomplished by novel U-slot cuttings and rectangular slots in the antenna. It resonates at quad-band without any patch or ground modification; when a U-slot cutting is made at the left and top of a patch, it resonates at six bands; and when rectangular slot cuttings are united at the ground plane, it resonates at nine bands. The slot length, width, and position are optimized to attain the highest gain. The achieved gains of the proposed

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“…Extensive work has been done to mitigate the problem of high cross-polarization in patch antennas [21,22]. Fractal Reconfigurable Antennas (FRAs) combine the characteristics of fractal geometries with electronic reconfiguration for providing enhanced antenna performance and can be utilized for multiple and advanced applications [23,24]. In [25], controlling the capacitance value of a single varactor diode provides about ten different resonating frequencies to a rhombus-shaped fractal microstrip antenna.…”

Section: Introductionmentioning

confidence: 99%

Cantor-square Fractal Reconfigurable Circular Patch Antenna with Low Cross-polarization for X Band Applications

Masroor¹,

Aslam²,

Ansari³

et al. 2022

PIER M

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This work proposes a novel probe-fed circular patch antenna which has been fractaled and reconfigured to deliver enhanced performance. The circular ground plane is made defected using Cantor-square fractal geometry which reduces the cross-polarization level by about 12 dB. Further, by appropriate positioning of a PIN diode switch in the ground slot, the fractal Circular Microstrip Patch Antenna (CMPA) is enabled to achieve frequency reconfiguration. A prototype of the proposed antenna is fabricated and tested for the assessment of various parameters. The proposed fractal reconfigurable antenna has a peak gain well above 6 dB, high radiation efficiency, and a maximum bandwidth of about 700 MHz in the X-band (8-12 GHz). The present work aims to focus on the huge potential of fractal reconfigurable antennas in modern dynamic wireless communication systems.

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A miniaturized multiband reconfigurable fractal slot antenna for GPS/GNSS/Bluetooth/WiMAX/X-band applications

Cited by 42 publications

References 18 publications

A Framework for Sensing Radio Frequency Spectrum Attacks on Medical Delivery Drones

A Framework for Sensing Radio Frequency Spectrum Attacks on Medical Delivery Drones

High Gain Miniaturized Multi-band Microstrip Patch Antenna Using Slot-Cutting Techniques for C, and X Band Applications

Cantor-square Fractal Reconfigurable Circular Patch Antenna with Low Cross-polarization for X Band Applications

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