Betekenis van:
travelling wave

Voorbeeldzinnen

1. Travelling wave tubes, pulsed or continuous wave, as follows:
2. Microwave tubes (for example, magnetrons, klystrons, travelling wave tubes, carcinotrons), excluding grid-controlled tubes
3. Microwave tubes (for example, magnetrons, klystrons, travelling wave tubes, carcinotrons), excluding grid-controlled tubes:
4. microwave power modules (MPM) consisting of, at least, a travelling wave tube, a microwave "monolithic integrated circuit" and an integrated electronic power conditioner and having all of the following:
5. Microwave power modules (MPM) consisting of, at least, a travelling wave tube, a microwave "monolithic integrated circuit" and an integrated electronic power conditioner and having all of the following:
6. Digital integrated circuits, other than those described in 3A001.a.3. to 3A001.a.10. and 3A001.a.12., based upon any compound semiconductor and having any of the following: a. An equivalent gate count of more than 3000 (2 input gates); or b. A toggle frequency exceeding 1,2 GHz; 12. Fast Fourier Transform (FFT) processors having a rated execution time for an N-point complex FFT of less than (N log2N)/20480 ms, where N is the number of points; Technical Note: When N is equal to 1024 points, the formula in 3A001.a.12. gives an execution time of 500 μs. b. Microwave or millimetre wave components, as follows: 1. Electronic vacuum tubes and cathodes, as follows: Note 1: 3A001.b.1. does not control tubes designed or rated for operation in any frequency band which meets all of the following characteristics: a. Does not exceed 31,8 GHz; and b. Is "allocated by the ITU" for radio-communications services, but not for radio-determination. Note 2: 3A001.b.1. does not control non- "space-qualified" tubes which meet all of the following characteristics: a. An average output power equal to or less than 50 W; and b. Designed or rated for operation in any frequency band which meets all of the following characteristics: 1. Exceeds 31,8 GHz but does not exceed 43,5 GHz; and 2. Is "allocated by the ITU" for radio-communications services, but not for radio-determination. a. Travelling wave tubes, pulsed or continuous wave, as follows: 1. Operating at frequencies exceeding 31,8 GHz; 2. Having a cathode heater element with a turn on time to rated RF power of less than 3 seconds; 3. Coupled cavity tubes, or derivatives thereof, with a "fractional bandwidth" of more than 7 % or a peak power exceeding 2,5 kW; 4. Helix tubes, or derivatives thereof, with any of the following characteristics: a. An "instantaneous bandwidth" of more than one octave, and average power (expressed in kW) times frequency (expressed in GHz) of more than 0,5;