返波管 回波振荡器 BWO oscillators

波振荡器是一种经典的电真空微波源慢波器件，在返向波器件中，电磁波的相速度与群速(能速)传输方向相反，利用热阴极发射的电子束穿过摇摆器后被强磁场聚焦打向阳极，在相反的方向产生电磁波。输出频率可以通过电极之间的电压来调谐。它可以在亚太赫兹区域产生频率连续调谐的相干输出。

Broadband BWO oscillators 33-90 GHz

Features
37-90 GHz in 4 bands Frequency accuracy 0.01% Full waveguide sweep in all bands Fully packaged and automated	Program from front panel or GPIB bus Remote controlled, phase lockable Bias tuneable for AFC High output power
Applications
Instrumentation automated subsystems Laboratory measurement and test equipment Source for Network Analysers, Plasma diagnostics and spectrometer Sweeping Heterodyne Receivers, frequency and spectrum analysis for gyrotrons

产品描述：

G4-143x series

The G4-143x series is fully packaged sweeper source. The microcomputer is integrated into the device provides total control of the system. The sweeper self-tests at turn-on. Two independent DAC’s control frequency and output power. Minimal built-in full band sweep time is 10ms. User from front panel or GPIB bus controls power, initial and final frequency, time of sweep, internal amplitude modulation. Various programs of power and frequency change are provided including 10 user-defined programs. There are two inputs for external frequency and power control. The rugged High Voltage power supply is specially designed to withstand the rapid voltage changes inherent in BWO deceleration. Each generator is individually calibrated for output power versus frequency, with different power levels and frequency versus control voltage relationships. Download operation manual for G4-143e (75-110GHz)

SGMW-x series

The SGMW-x series is fully packaged sweeper source. The sweeper consists of external module with BWO-X series and power supply. There are all the electronic circuitry and power supplies required to provide the operation of BWO. The sweeper self-tests at turn-on. BWO tube is fully protected against improper voltage connections. There are two inputs for external frequency and power control. Phase locking possibility is provided. Minimal built-in full band sweep time is 10ms. One power supply can be used with different BWO. Particularly, the remote module with BWO tube allows using it at hard-to-reach places and can be installed quite away, somewhere near a scientist’s work desk. Another great advantage of this series of BWO sweepers is its power supply unit, that allows feed up to few BWO tubes even with different working frequencies. Download operation manual for SGMW-x

Common Specifications
Frequency accuracy in the CW mode,	±0.01
Built-in Sweep Time, ms	10*
Maximum CW frequency stability for 15 min	±2*10-4
Residual FM max	±2*10-5
Output power regulation range, dB	0-10…20**
Output VSWR	1.5
Internal square-wave modulation frequencies, kHz	1-100
External square-wave modulation frequencies, kHz	1-100
Voltage for External Frequency Control, VDC	0 … +10
Voltage for External Power Control, VDC	0 … +10
Operating temperature range, C	+5…+40
AC Input Voltages	220 V, 50 Hz (110V/60Hz*)
Consumed power, VA	400
Size of G4-143x, mm	495 x 180 x 480
Size Power Supply SGMW, mm	490 x 240 x 272
Weight Power Supply SGMW, kg	5
Size BWO module for SGMW, mm	150 x 180 x 200
Weight BWO module for SGMW, kg	4
Length of connection cable for SGMW, m	1…2 (specify in order)

* Full one band sweep time: less then 200 microseconds with external frequency control
** Uncontrolled (not specified) parameter

Specifications G4-143x
G4-143x	G4-143a	G4-143b	G4-143c	G4-143d
Frequency range, GHz	33-54	40-60	50-75	60-90
Output waveguide type	WR22	WR19	WR15	WR12
Waveguide Flange	UG-383/U	UG-383/U-M	UG-385/U	UG-387/U
Minimum CW power, mW	50	100	25	25
Typical peak power, mW	150	200	80	80

Specifications SGMW-X-A
BWO modules for SGMW	BWO-Q	BWO-U	BWO-V	BWO-E
Frequency range, GHz	33-54	40-60	50-75	60-90
Output waveguide type	WR22	WR19	WR15	WR12
Waveguide Flange	UG-383/U	UG-383/U-M	UG-385/U	UG-387/U
Minimum CW power, mW	50	100	25	25
Typical peak power, mW	150	200	80	80

Typical data for V and E bands BWO

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