Modeling Vacuum Electronic Devices Using Generalized Impedance Matrices

被引：30

作者：

Chernyavskiy, Igor A. ^{[1
]}

Antonsen, Thomas M., Jr. ^{[2
]}

Rodgers, John C. ^{[1
]}

vlasov, Alexander N. ^{[1
]}

Chernin, David ^{[2
]}

Levush, Baruch ^{[1
]}

机构：

[1] Naval Res Lab, Washington, DC 20375 USA

[2] Leidos Inc, Reston, VA 20190 USA

来源：

IEEE TRANSACTIONS ON ELECTRON DEVICES | 2017年 / 64卷 / 02期

关键词：

Folded-waveguide (FWG); impedance matrix; large-signal simulation; slow wave structure; traveling wave tube; SIMULATION; SLOW;

D O I：

10.1109/TED.2016.2640205

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

We have developed a general approach to modeling a large class of vacuum electronic devices (VEDs) by using impedance matrices to characterize the circuit structure. Our approach can treat VEDs that have an arbitrary number of interaction gaps, severs, and input and/or output ports thatmay incorporate arbitrarilycomplex matching and/or tuning elements and windows. To find the impedance matrix for a given structure, we use the computational electromagnetics 3-D finite-element code HFSS to compute the responseof the entire structure to an excitation of each individual port and gap. We define voltages and currents as certain integrals over the electric and magnetic fields, respectively, the ratios of which are elements of the generalized impedancematrix. Thismatrix is then imported into a beam-wave interaction code, which is used to compute VED performance (gain, output power, bandwidth, and so on). We have implemented this capability in a new 2-D code TESLA-Z, which has been verified by comparison with the large-signal code TESLA-FW and then validated by comparison with measured data from a Ka-band foldedwaveguide power-booster TWT. Similar capability was also implemented in the 1-D interaction code CHRISTINE-CC.

引用

页码：536 / 542

页数：7

共 14 条

[1] Transmission Line Model for Folded Waveguide Circuits [J].