Manipulation of the Radiation Characteristics of a Patch Antenna by Small Ferrite Disks Inserted in Its Cavity Domain

Sigalov, M.; Shavit, R.; Joffe, R.; Kamenetskii, E. O.

doi:10.1109/tap.2013.2242830

Cited by 10 publications

(2 citation statements)

References 17 publications

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“…To attain this goal, we applied a continuous magnetic field perpendicular to the direction of EM field propagation on the ferrite disk, as described in [28,29]. Subsequently, we recorded the central frequencies of the two main bands for each value of H i .…”

Section: Optimal Magnetic Bias Field Findingmentioning

confidence: 99%

A microstrip Antenna for Underground Applications with Frequency Insenitivity to soil moisture variations

MEJJATTI,

Habbani

2024

Preprint

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In this article, we propose a novel design of a buried rectangular patch antenna utilizing the ferromag-netic properties to ensure the resonant frequency resistivity against uctuations in soil permittivity,notably due to variations in its water content. The study initially prioritized determining the idealposition of the ferrite core introduced into the substrate and optimizing the external magnetic eldbias for its application. Subsequently, attention was directed towards evaluating the return loss of thedesigned antenna through simulation under conditions where humidity varies between 0 and 50%. Theresults indicated that the transmitter operates in two di erent modes: ordinary and extraordinary,with the latter maintaining a stable frequency with a deviation rate from the initial one on dry soilnot exceeding 3%, instead of the 50% observed for the former mode. This feature grants it the abilityto be deployable in applications with underground nodes, such as in the case of precision agriculture,without needing to intervene to adjust the operating frequency.

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Section: Optimal Magnetic Bias Field Findingmentioning

confidence: 99%

A microstrip Antenna for Underground Applications with Frequency Insenitivity to soil moisture variations

MEJJATTI,

Habbani

2024

Preprint

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“…Various other methods have been proposed to reduce antenna RCS, including PIN diodes [17], random element rotation [18], resistive loading [19], etc. [20]. Several carefully positioned PIN diodes reduced in-band and out-of-band microstrip antenna RCS simultaneously [17].…”

Section: Introductionmentioning

confidence: 99%

A microstrip antenna with reduced in-band and out-of-band radar cross-section

Zhang

et al. 2018

Int. J. Microw. Wireless Technol.

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This paper proposes a microstrip antenna with reduced in-band and out-of-band radar cross-section (RCS) by subtracting the area of weak scattered current on the ground plane. Fourteen square slots were subtracted from the ground plane, reducing in-band and out-of-band RCS while maintaining radiation performance. Modified and reference antenna surface current distributions were simulated and analyzed in radiating and scattering modes. Two antenna prototypes were fabricated and measured to verify the simulation. The proposed antenna RCS was reduced compared with the reference antenna in the frequency range 1–4.4 GHz, including in-band and out-of-band frequency bands. Maximum in-band and out-of-band RCS reduction was 16.3 dBsm at the working frequency, and 19.3 dBsm at 3.4 GHz, respectively

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Analysis, design and fabrication of reconfigurable patch antenna on magnetodielectric composite substrate with biased ferrite particles

Andreou

Zervos

Alexandridis

et al. 2022

AEU - International Journal of Electronics and Communications

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Manipulation of the Radiation Characteristics of a Patch Antenna by Small Ferrite Disks Inserted in Its Cavity Domain

Cited by 10 publications

References 17 publications

A microstrip Antenna for Underground Applications with Frequency Insenitivity to soil moisture variations

A microstrip Antenna for Underground Applications with Frequency Insenitivity to soil moisture variations

A microstrip antenna with reduced in-band and out-of-band radar cross-section

Analysis, design and fabrication of reconfigurable patch antenna on magnetodielectric composite substrate with biased ferrite particles

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