The cyclotron autoresonance maser with a large-orbit electron ring in a dielectric-loaded waveguide

Yin, Yan

doi:10.1007/bf02096218

Cited by 6 publications

(3 citation statements)

References 34 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Among other applications, dielectric-loaded waveguides have found applications in gyro-devices including gyrotron [2][3][4], gyro-TWT [5][6][7][8][9][10][11][12][13], CARM [14] and others [15][16][17][18][19][20][21][22][23][24][25][26][27][28][29]. The gyro-devices usually employ RF structures with small structural nonuniformities.…”

Section: Introductionmentioning

confidence: 99%

Analogy Between Circular Core-Cladding and Impedance Waveguides and Their Membrane Functions

Shcherbinin¹,

Zaginaylov²,

Ткаченко³

2017

PIER M

View full text Add to dashboard Cite

Abstract-One-side boundary conditions on the field inside core region are obtained for core-cladding waveguide with anisotropic cladding. The boundary conditions involve two functions acting as components of anisotropic surface impedance for cladding material. These functions are determined in relation to desired values for step-index waveguide and dielectric-lined waveguide with either perfectly or finitely conducting walls. With resulting surface impedance, the perfect analogy between corecladding and impedance waveguide is achieved. Using this analogy, independent eigenvalue problems are obtained for membrane functions of HE and EH waves of core-cladding waveguide. From this result some conclusions about electromagnetic properties of HE and EH waves are drawn.

show abstract

Section: Introductionmentioning

confidence: 99%

Analogy Between Circular Core-Cladding and Impedance Waveguides and Their Membrane Functions

Shcherbinin¹,

Zaginaylov²,

Ткаченко³

2017

PIER M

View full text Add to dashboard Cite

show abstract

“…M ETALLIC waveguides are attractive at high frequencies for their low propagation loss, moderate bandwidths, shielding properties, and excellent power-handling capability. Hollow versions prove useful in several applications, including fluid-density measurements in the oil/gas industry [1], microwave heating of fluids [2], the observation of exotic radiation in particle physics [3], and low-loss infrared transmission of CO 2 -laser light [4]. However, these waveguides lack the capability to be miniaturized without additional loading, due to the strict dependence of their cutoff frequencies on their transverse dimensions.…”

Section: Introductionmentioning

confidence: 99%

Experimental Verification of Below-Cutoff Propagation in Miniaturized Circular Waveguides Using Anisotropic ENNZ Metamaterial Liners

Pollock

Iyer

2016

IEEE Trans. Microwave Theory Techn.

View full text Add to dashboard Cite

This paper presents experimental verification of below-cutoff transmission through miniaturized waveguides whose interior is coated with a thin anisotropic metamaterial liner possessing epsilon-negative and near-zero (ENNZ) properties. These liners are realized using a simple, printed-circuit implementation based on inductively loaded wires, and introduce an HE11 mode well below the natural cutoff frequency. The inclusion of the liner is shown to substantially improve the transmission between two embedded shielded-loop sources. A homogenization scheme is developed to characterize the liner's anisotropic effective-medium parameters, which is shown to accurately describe a set of frequency-reduced cutoffs. The fabrication of the lined waveguide is discussed, and the experimental and simulated transmission results are shown to be in agreement.

show abstract

“…Furthermore, this approach is unsuitable for applications requiring access to the interior of the waveguide. For example, uninhibited motion of particles through waveguides is required in both microwave heating of fluids [8] and in cyclotron masers for electron beams [9]. In these cases, it may be more prudent to partially fill, or line, the waveguide with a dielectric [10].…”

Section: Introductionmentioning

confidence: 99%

Miniaturized Circular-Waveguide Probe Antennas Using Metamaterial Liners

Pollock

Iyer

2015

IEEE Trans. Antennas Propagat.

View full text Add to dashboard Cite

This work presents the radiation performance of open-ended circular-waveguide probe antennas that have been miniaturized by the introduction of thin metamaterial liners. The liners introduce an HE$_{11}$ mode well below the natural cutoff frequency, which provides substantial gain improvements over a similarly sized waveguide probe. A new feeding arrangement employing a shielded-loop source embedded inside the miniaturized waveguide is developed to efficiently excite the HE$_{11}$ mode and avoid the excitation of other modes across the frequency reduced band while maintaining the antenna's compactness. A metamaterial-lined circular-waveguide probe antenna operating over 42% below its natural cutoff frequency is designed to provide a radiation efficiency of up to 28.8%. A simple, printed-circuit implementation of the metamaterial liner based on inductively loaded wires is proposed and its dispersion features are discussed.Comment: The manuscript has been revised for publication as a 6 page communication in the IEEE Transactions on Antennas and Propagation. This included a reduction of material in the theory section, removal of all discussion on anisotropic theory, and introduction of a novel excitation sourc

show abstract

The cyclotron autoresonance maser with a large-orbit electron ring in a dielectric-loaded waveguide

Cited by 6 publications

References 34 publications

Analogy Between Circular Core-Cladding and Impedance Waveguides and Their Membrane Functions

Analogy Between Circular Core-Cladding and Impedance Waveguides and Their Membrane Functions

Experimental Verification of Below-Cutoff Propagation in Miniaturized Circular Waveguides Using Anisotropic ENNZ Metamaterial Liners

Miniaturized Circular-Waveguide Probe Antennas Using Metamaterial Liners

Contact Info

Product

Resources

About