公开(公告)号：JP2004164904A

公开(公告)日：2004-06-10

申请号：JP2002326822

申请日：2002-11-11

Applicant: Nec Micro Hakan Kk ,  エヌイーシーマイクロ波管株式会社

Inventor： NAKAZATO YOSHIO

IPC: H01J23/40 ,  H01J23/54 ,  H01P1/207 ,  H01P1/211

CPC classification number: H01J23/54

Abstract: PROBLEM TO BE SOLVED: To provide an electron tube for communication which is independent of the configuration of a communication device and can reduce the size and weight of the whole communication device.
SOLUTION: The electron tube for communication comprises an output waveguide which is directly connected to a take-out port of high frequency signals; and has the configuration having at least one of a low pass filter, a high pass filter, and a bandpass filter in the output waveguide.
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