Wideband Circularly Polarized AMC Reflector Backed Aperture Antenna

Agarwal, Kush; Nasimuddin, Nasimuddin; Alphones, Arokiaswami

doi:10.1109/tap.2012.2227446

Cited by 122 publications

(56 citation statements)

References 10 publications

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“…Prior to it, complete illustration about the microwave antennas in RF energy harvesting are presented with complete design perspective. A comparative study along with performatory analysis of microwave antennas are presented in Table ; keeping intact with rectenna characteristics: operating frequency, realized gain, polarization diversity, input power levels, and RF‐to‐DC power conversion efficiency, which was not in the scope of review papers for RF energy harvesting available in the open literature. Technically, to pursue clear understanding about tradeoffs of modern RF systems; five different cases of planar antennas (monopole antennas) at different bands with reflector surfaces and integrated with rectifier circuits are designed, simulated and analyzed by using FDTD domain solver (CST microwave studio) and circuit solver (advanced design system).…”

Section: Microwave Antennas In Rf Energy Harvesting Systemsmentioning

confidence: 99%

Microwave antennas—An intrinsic part of RF energy harvesting systems: A contingent study about its design methodologies and state‐of‐art technologies in current scenario

Behera

Meher

Mishra

2020

Int J RF Microw Comput Aided Eng

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With the significant rise of low power embedded devices in various applications of both consumer and commercial usage, the surge for continuous power requirements has initiated promising research toward alternative sources of energy. It includes the domain of wireless power transmission, internet‐of‐things, wireless sensor nodes, machine‐to‐machine, and radio frequency identification. Thus, the overall scope of this review article is to witness microwave antennas and its implementation in RF energy harvesting system through ambient RF signals. For this reason, unified understanding of classical electromagnetism is needed; beginning with the fundamentals of RF transmission and the exploration of concepts such as Fraunhofer's Distance and Friis Transmission Equation. It is followed up by the analogy of dependency of parameters like circuit build‐up, conversion efficiencies and amount of power harvested, which is quite crucial from the rectifier point‐of‐view. For better improvisement in RF energy harvesting systems, five different cases of monopole antennas are explored with reflector surfaces such as PEC (perfect electrical conductor) and AMC (artificial magnetic conductor) integrated with the rectifier circuit. Implementation with wide diversity has proposed a generalized solution for achieving tradeoffs: polarization and pattern diversity with consistent system efficiency; leads to clean and sustainable energy for low power‐embedded devices.

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Section: Microwave Antennas In Rf Energy Harvesting Systemsmentioning

confidence: 99%

Microwave antennas—An intrinsic part of RF energy harvesting systems: A contingent study about its design methodologies and state‐of‐art technologies in current scenario

Behera

Meher

Mishra

2020

Int J RF Microw Comput Aided Eng

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“…Nevertheless, it is still difficult to design antennas with higher gain. To improve antenna gains, some reflectors were applied [7][8][9]. Using the reflectors, interferences between back lobes and side lobes are significantly reduced.…”

Section: Introductionmentioning

confidence: 99%

Dual Band Square Planar Dipole Antennas with Interdigital Capacitors for Base Stations

Akkaraekthalin¹,

Chomtong²

2017

RADIOENGINEERING

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“…For example, frequency selective surfaces (FSS) can be used as a radome to uniformly scatter the impinging wave everywhere outside the antenna operating band [10][11][12]. Compared to the FSS, the artificial magnetic conductors (AMC) [13,14] and electromagnetic band gap (EBG) structures [15,16] contribute not only to the out-of-band RCS reduction, but also to the in-band RCS reduction, which are based on the principle of the scattered wave cancelation.…”

Section: Introductionmentioning

confidence: 99%

RCS Reduction Using a Miniaturized Uni-Planar Electromagnetic Band Gap Structure for Circularly Polarized Microstrip Antenna Array

Zhang¹,

Dong²

2017

PIER Letters

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Abstract-In this paper, a new method for radar cross section (RCS) reduction of circularly polarized (CP) microstrip antenna array with small element spacing is proposed. By employing the element rotation technique and loading EBG structures, the in-band and out-of-band RCSs are reduced simultaneously despite the extreme small space between array elements. The simulated results show that the proposed antenna has an average RCS reduction over 10 dB in the X-band for x-polarized and y-polarized incident waves impinging from normal direction compared to the original CP microstrip antenna array, indicating a fractional bandwidth of 40%. The maximum RCS reduction is over 25 dB. Meanwhile, the radiation performance of the proposed antenna array is kept.

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Wideband Circularly Polarized AMC Reflector Backed Aperture Antenna

Cited by 122 publications

References 10 publications

Microwave antennas—An intrinsic part of RF energy harvesting systems: A contingent study about its design methodologies and state‐of‐art technologies in current scenario

Microwave antennas—An intrinsic part of RF energy harvesting systems: A contingent study about its design methodologies and state‐of‐art technologies in current scenario

Dual Band Square Planar Dipole Antennas with Interdigital Capacitors for Base Stations

RCS Reduction Using a Miniaturized Uni-Planar Electromagnetic Band Gap Structure for Circularly Polarized Microstrip Antenna Array

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