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Variable Attenuator

 

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RF waveguide attenuators are waveguide components used to reduce the power level of a signal by a certain amount (gain), with little or no reflections. The output signal is reduced with respect to the input.
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Parts by Number for Variable Attenuator Top

Partb # Distributor Manufacturer Product Category Description
AT-259TR ASAP Semiconductor M/A COM Not Provided VOLTAGE VARIABLE ATTENUATOR
HMMC-1002 Avnet Express Agilent Technologies RF ICs VOLT VARIABLE ATTENUATOR 40DB ATTENUATION 26500MHZ 40DB ATTE
AMMP-6650-BLKG Avnet Express Avago Technologies RF ICs VOLT CNTRLD VARIABLE ATTENUATOR 35.6DB ATTENUATION 30000MHZ
AT-255-PIN Avnet Express M/A-Com Technology Solutions RF ICs 3VOLT VOLT VARIABLE ATTENUATOR 5PIN SOT-25
MAAVSS0006 Avnet Express M/A-Com Technology Solutions RF ICs 3VOLT VOLT VARIABLE ATTENUATOR 25 DB, DC-2.5 GHZ

Conduct Research Top

  • Variable Attenuators
    A variable attenuator is an attenuator whose attenuation can be varied between two values in a specified range. Depending on how the changes are accomplished there are several types: • Continuously Variable: The attenuation can be varied in a continuous fashion. • Step Variable Attenuators
  • Computer Controlled Variable Attenuator for Lasers (.pdf)
    This application note describes a closed loop computer controlled variable attenuator (figure 1) for the control of output power of a laser. It is based on the combination of a 1/2 wave-plate and polarizer. The algorithm used to control power operates in a closed loop with Proportional Integral
  • Computer Controlled Variable Attenuator for Tunable Lasers
    This application note describes a closed loop, computer-controlled, variable attenuator (Figure 1) for the control of output power from a tunable laser. It is based on the combination of a 1/2 wave-plate and a polarizer. The algorithm used to control power operates in a closed loop
  • Variable Attenuator for Lasers
    to the optical axis. Layout 1. APPLICATION NOTE. Variable Attenuator for Lasers. 26. Technology and Applications Center. Newport Corporation. This application note details a simple and cost effective. solution for the continuous attenuation of laser output. power. The attenuator kit described is based on a half
  • AN3001: PIN Diode Vector Modulators
    variable attenuators (four-port quadrature hybrids with both outputs terminated in PIN diodes), and an output power combiner. One of the keys to understanding how vector modulators work is to understand that there is a phase shift of 180 degrees when the impedance of the diodes (for a single VVA
  • MA-C-05010008A: Optimizing AT65-0009 for Communication Bandwidths
    The AT65-0009 is a voltage variable attenuator in a plastic SOT package. The device performance has a broad bandwidth, 20% centered at 1000 MHz. It also has a large dynamic range - up to 28 dB of attenuation, high IP3 - up to 40 dB and good return loss. This application note describes optimizing
  • Understanding Your Signal Generator Output Specification (.pdf)
    . There is however a common. underlying format. Figure 1 illustrates the concept of a basic. variable output level system. The adjustable gain block satisfies. Figure 2 - ALC Output Levelling Loop. the need for a continuously variable output. The stepped. attenuator is required because the output level range
  • High Spur Free Dynamic Range RF Photonic Links allow MIL SATCOM and RF Distribution Networks to Leverage Optical Communication Infrastructure (.pdf)
    that in. Frequency Reference, RF Redundant. the event that a system health fault occurs,. The technological maturation and commer-. Switches, Monitoring & Control (M&C),. and system redundancy has been compro-. cialization of RF Photonics have yielded a. Data Links, Variable Attenuators, and. mised, the system

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