TE modes of an axially multiple-grooved rectangular waveguide

Ericksen, K.P.; Ferendeci, Altan M.

doi:10.1109/22.414532

“…Spreading of the total current into a ribbon beam reduces the space charge forces considerably. The efficiency of coupling at the higher harmonics is also shown to be very high [3]. Recent numerical simulations of the axially grooved rectangular gyrotron verify that this interaction is indeed vary high and the start oscillation current levels at the higher harmonics fall easily within the levels that are achievable with the present day electron beams.…”

Section: High Harmonic Rectangular Gyrotronmentioning

confidence: 84%

“…In Fig.5b, the electron trajectories are plotted under uncreasing magnetic field. In both of the graphs, assocaited equipotentials between the electrodes are also plotted [3]. …”

Section: High Harmonic Rectangular Gyrotronmentioning

confidence: 99%

See 1 more Smart Citation

Rectangular cavity high harmonic maser amplifier

Ferendeci

¹

,

Ewing²

2012

2012 IEEE National Aerospace and Electronics Conference (NAECON)

0

View full text Add to dashboard Cite

A maser amplifier operating at the higher harmonics of the cyclotron frequency is presented. Detailed study of the performance has already been done incorporating an axially slotted rectangular waveguide and the study is now concentrated on the detailed experimental construction of the unit. The present harmonic maser also known as a gyrotron will be initially experimentally demonstrated and verified at the X-band frequencies. The goal is using the experience gained from the lower frequency operation is to design, construct and demonstrate a rectangular high harmonic maser amplifier at the W-band frequencies.

show abstract

Waveguides

Vorst

¹

2004

Encyclopedia of RF and Microwave Engineering

0

View full text Add to dashboard Cite

In the electromagnetic spectrum, microwaves are the waves whose wavelengths are comparable to ordinary laboratory dimensions. Furthermore, smooth surfaces of good conductors form very perfect reflectors for them. As a consequence, an electromagnetic wave in a reflecting pipe is reflected back and forth from wall to wall, so that it can travel to large distances with small attenuation. Hence we have “waveguides” as transmission lines, dealing with electromagnetic fields in the inside of hollow regions, rather than outside wires for more conventional electric applications, or waves in free space as in optics, and the propagating electromagnetic field is confined to the finite region of the guide by reflecting walls. The present article reviews the basic theory and the different geometries used in the various applications of such hollow waveguides. It also reviews specific recent (as of 2003) developments, such as theoretical advances, waveguides with arbitrary cross section, and ridged and grooved waveguides.

show abstract

Waveguides

Vorst

2004

Encyclopedia of RF and Microwave Engineering

0

View full text Add to dashboard Cite

In the electromagnetic spectrum, microwaves are the waves whose wavelengths are comparable to ordinary laboratory dimensions. Furthermore, smooth surfaces of good conductors form very perfect reflectors for them. As a consequence, an electromagnetic wave in a reflecting pipe is reflected back and forth from wall to wall, so that it can travel to large distances with small attenuation. Hence we have “waveguides” as transmission lines, dealing with electromagnetic fields in the inside of hollow regions, rather than outside wires for more conventional electric applications, or waves in free space as in optics, and the propagating electromagnetic field is confined to the finite region of the guide by reflecting walls. The present article reviews the basic theory and the different geometries used in the various applications of such hollow waveguides. It also reviews specific recent (as of 2003) developments, such as theoretical advances, waveguides with arbitrary cross section, and ridged and grooved waveguides.

show abstract

TE modes of an axially multiple-grooved rectangular waveguide

Cited by 6 publications

References 8 publications

Rectangular cavity high harmonic maser amplifier

Rectangular cavity high harmonic maser amplifier

Waveguides

Waveguides

Contact Info

Product

Resources

About