A conceptual study of stealth plasma antenna

Kang, Weng Lock; Rader, M.; Alexeff, I.

doi:10.1109/plasma.1996.551505

Cited by 13 publications

(2 citation statements)

References 2 publications

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“…In this paper, we propose a plasma-based power limitation scheme which not only offers switch protection and isolation enhancement, but also preserves the linearity of the MEMS switch and is able to be integrated with DCcoupled inputs. Although the use of plasmas as components in RF and microwave electronics is not new [21], [22], and recent work [18]- [20], [23], [24] continues to advance its utility in many basic RF building blocks such as switches [23], [24], antennas [21], [25], [26], and limiters [16]- [20], the body of literature concerning applied RF use of plasma cells such as gas discharge tubes (GDTs) is quite sparse. The use of plasma is compelling because of its natural synergy in high-power handling, high linearity, and potential fast switching and tuning speeds [20], [24].…”

Section: Introductionmentioning

confidence: 99%

Plasma-Based Power Limitation for Highly Linear MEMS Switch Protection and Isolation Enhancement

2020

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A novel hybrid approach integrating a MEMS switch with a gas discharge tube plasma cell to enhance switch survivability and isolation, especially at high incident power levels, is demonstrated. The theory of operation is discussed including consideration of the underlying plasma phenomena as well as the practical integration details. Measurement of a fabricated prototype is presented. Discussion of measurement challenges and potential solutions is accompanied by detailed explanations of measurement practice. Measurements provide insights into applied RF plasmas not present in the body of literature. Wideband enhancement of isolation by more than 10 dB at 50 W incident power is observed in a quasi-absorptive mode with increasing isolation over power. No penalty to the excellent linearity of MEMS switches is detected with a measured IIP3 of 75.3 dBm. Advantages in linearity as compared to semiconductor-based power limiting solutions are shown and demonstrate state-of-the-art performance. An incremental insertion loss of less than 0.2 dB with a return loss better than 12.5 dB is reported. Measurement of the effects on MEMS switch timing parameters as well as time domain characterization of the plasma breakdown is included.

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Section: Introductionmentioning

confidence: 99%

Plasma-Based Power Limitation for Highly Linear MEMS Switch Protection and Isolation Enhancement

2020

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“…Plasma antenna originates back from the eighties of 20th century, and various ingenious ways has been devised to achieve such purpose. Plasma can be generated by UV laser irradiation, or by laser initiated pre-ionization followed by high voltage breakdown to form the main conducting channel [4], or by simply using commercial fluorescence tube to serve as reflector [5,6], or by much more expensive electron beam [7][8][9]. There were also exotic methods like explosion generating plasma antenna for fusion research.…”

Section: Introductionmentioning

confidence: 99%

Characteristics of AC-biased Plasma Antenna and Plasma Antenna Excited by Surface Wave

Zhu¹,

Chen²,

Lv³

et al. 2012

JEMAA

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Plasma's conductive and dielectric properties have been well known for decades. Plasma antenna is a general terms representing using plasma as a conductive medium to transmit or reflect signals. It has unique properties like low RCS (radar cross section), variable impedance and instant on-off capability. Previous plasma antenna uses RF power to generate the plasma column. We developed AC-biased (alternating current) plasma antenna, which has larger operation frequency scale and lower sustaining power. Signals propagated are coupled into the plasma antenna via capacitive coupling. Impedance of the plasma shifts slightly with the AC current. Radiation pattern of the plasma antenna is less uniform than metal antenna and its gain is related to AC power, from the measuring results of AC-biased plasma antenna we found its advantages compare to the plasma antenna excited by the surface wave.

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Wideband radar cross-section reduction using plasma-based checkerboard metasurface

Zhao

Dong

et al. 2022

Plasma Sci. Technol.

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For the stealth technology, in order to overcome the limitations of thin-layer plasma for electromagnetic (EM) waves attenuation and further broaden the RCS reduction band of the metasurface, the plasma based checkerboard metasurface composed of plasma and checkerboard metasurface is investigated to achieve better radar cross section (RCS) reduction (RCSR). We designed a checkerboard metasurface which can achieve abnormal reflection to reduce RCS and whose -10dB RCSR bandwidth is from 8.1 GHz to 14.5 GHz, the RCSR principle of it lies in the backscattering cancellation, which depends on the phase difference of artificial magnetic conductor (AMC) units. The designed plasma based checkerboard metasurface is a thin composite structure, including a checkerboard metasurface, a plasma layer, and a air gap is between them. Full wave simulations confirm that the plasma based checkerboard metasurface’s -10dB RCS reduction bandwidth and RCS reduction amplitude are both increased under different polarized waves compared with the only single plasma or the only metasurface. We also introduced the reason and mechanism of the interaction between plasma and checkerboard metasurface to improve the RCSR effect in detail. And as it doesn’t need too thick plasma required for plasma steath, its application in practical scenarios is easier to implement. Keywords: abnormal reflection, stealth technology, plasma based checkerboard metasurface, radar cross section reduction (RCSR)

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A conceptual study of stealth plasma antenna

Cited by 13 publications

References 2 publications

Plasma-Based Power Limitation for Highly Linear MEMS Switch Protection and Isolation Enhancement

Plasma-Based Power Limitation for Highly Linear MEMS Switch Protection and Isolation Enhancement

Characteristics of AC-biased Plasma Antenna and Plasma Antenna Excited by Surface Wave

Wideband radar cross-section reduction using plasma-based checkerboard metasurface

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