IMPATT有源倍增管

 产品特性：

  倍增因数高至 25                         

 高效率

 高功率输出水平

 低杂散谐波

 快速变换

 低相位&调幅噪声

技术参数：

* Operationbandwidth 3-5%. Upon request 10% version is available.
** Values are presented for the middle frequency of the frequencyband.

产品描述：

        Eachwave series IMPATT Active FrequencyMultipliers IAFM are really unique devices providing anoutstanding performance in terms of high efficiency and high outputpower. Available in multiplication factor up to 25 in onedevice they cover the output frequency range of 20 to 180 GHzusing centimeter-wave range source. They are capable ofhanding very high input power without damage. Different IAFM’swould operate with the same centimeter-wave range pumping source.For example, on the picture above you can see the pumpingsource (20mW, 7.2775 GHz) and three differentmultipliers: IAFM-28 (5th harmonic, 36.3875 GHz), IAFM-15 (8thharmonic, 58.2200 GHz) and IAFM-10 (13th harmonic, 94.6075GHz). The phase and amplitude stability of the output signaldefined by the quality of the pumping source. It is possibleto achieve Hz resolution on 150 GHz using state-of-the-artsynthesized cm-wave source. The frequency multipliers aredesigned as a module, that consists of centimeter-wave highpower preamplifier, a multiplier itself, band-pass filter andisolator. Current stabilizer included for reliable,trouble-free operation. The band-pass filter rejects the side bandnoise of the source on about -50 dB. That allows to use thedevice as low noise solid state LO, if intermediate frequency ishigher then the frequency of rejection. The input ofmultiplier is a coaxial connector, and the output is awaveguide flange.

应用：

 Power sources
  Electronic tuned power sources
  Millimeter wave frequency synthesizers
  Spectroscopy/Radiometry
  Digital Radio

commonspecification

—— Output power flatness within the 1% bandwidth (max)                                                          1.5 dB
—— Rejection of adjacent harmonics(min)                                                                                   40 dB

—— VSWR                                                                                                                                                1:1.3

—— AM noise inserted (max)                                                                                                                   -130 dB/Hz (white noise)

There is noadditional noise produced by IAFM-XX in comparing with passivemultipliers. It can be estimated using the formula: Noise ofpumping source +20Lg(N) dB/Hz. For example, if 7 GHz pumpingsource has -120dB/Hz on 10 kHz offset from the carrier, afterfrequency multiplication on a factor of 20 the noise of 140GHz source on 10 kHz offset will be -120dB/Hz+20Lg(20) = -94dB/Hz. Series IAFM-XX are designed for high reliability andapplications in hard environments. The operating temperaturerange: minus 50 to plus 70 ℃ and life time is equal to 50000 hours.Each model may be produced with the possibility of the fastoutput power switching. 1 ns time of on/off switchingis allowed. Optionally the following items would besupplied to meet customer requirements:
—— Complete very stable solid state millimeter wave source, thatconsists of the following: Transistor oscillator stabilised bythe dielectric resonator (DRO). 6-8 GHz, 10 mW output, 10-6 frequency stability. The stability would be increased uponrequest using a temperaturestabilization scheme. Accuracy of frequency adjustment isabout 5-50 MHz. The adjustment is provided on thefactory according to customer requirements.
—— Millimeter wave sweeper on the base of Varactor ControlledOscillator (6-8 GHz, 10 mW). Other elements of the scheme arethe same as above. Typical bandwidth is 0.5-1%.
—— The frequency bandwidth would be also increased upon request.The limit is the distance between nearest harmonics, so it isimpossible to provide the bandwidth more than thepumping frequency. The real bandwidth would be about 50-80% ofthe initial (pumping) frequency.
—— IMPATT Injection-Locked Amplifiers IILA series to increase theoutput power.
—— Phase or amplitude modulator on the base of fast P-I-N switchFPS series.
—— Amplitude regulator on the base of Voltage Controlled AttenuatorVCVA series.
—— Power supply for AC Input Voltages 110 V, 60Hz; 220 V, 50Hz.