P2-24: Numerical simulation of resonant loss in coupled-cavity SWS

Christie, V.L.; Sumathy, M.; Kumar, Lalit

doi:10.1109/ivelec.2010.5503500

Cited by 1 publication

(2 citation statements)

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“…It is also conducible to preventing the band-edge oscillation at the upper cut-off frequency of the cavity mode. [30] Therefore, the design and the optimization of the waveguide coupler for the coupled cavity are important parts of the CCTWT design. However, the coupled cavity is inherently a threedimensional structure, and the design of broadband low-VSWR couplers is a complicated process.…”

Section: Input/output Coupler Designmentioning

confidence: 99%

“…The available literature in this respect is relatively rare and just limited to the case of Hughes-type structure. [29,30] In this section, a well-matched input/output coupler with a simple structure for the re-entrant doublestaggered ladder CCTWT is proposed. It is composed of three components, i.e., a flat rectangular waveguide, a transition section, and a waveguide transformer, as shown in Fig.…”

Section: Input/output Coupler Designmentioning

confidence: 99%

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Design of a re-entrant double-staggered ladder circuit for V-band coupled-cavity traveling-wave tubes

Yang¹,

Xu²,

Lai³

et al. 2012

Chinese Phys. B

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The re-entrant double-staggered ladder slow-wave structure is employed in a high-power V-band coupled-cavity traveling-wave tube. This structure has a wide bandwidth, a moderate interaction impedance, and excellent thermal dissipation properties, as well as easy fabrication. A well-matched waveguide coupler is proposed for the structure. Combining the design of attenuators, a full-scale three-dimensional circuit model for the V-band coupled-cavity traveling-wave tube is constructed. The electromagnetic characteristics and the beam—wave interaction of this structure are investigated. The beam current is set to be 100 mA, and the cathode voltage is tuned from 16.8 kV to 15.8 kV. The calculation results show that this tube can produce a saturated average output power over 100 W with an instantaneous bandwidth greater than 1.25 GHz in the frequency ranging from 58 GHz to 62 GHz. The corresponding gain and electronic efficiency can reach over 32 dB and 6.5%, respectively.

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Section: Input/output Coupler Designmentioning

confidence: 99%

Section: Input/output Coupler Designmentioning

confidence: 99%