Data Based IQ Demodulator


Posted on Feb 7, 2014

The IQ_Demod project illustrates the use of the IQ_Demod_Setup and IQ_Demod_Data components in ADS. These components are part of the ADS behavioral model suite found under the System - Data Models palette. `IQ_demod_ckt. dsn` is a schematic for the demodulator of interest. This demodulator follows the topology of the system-level demodulator constructed.


Data Based IQ Demodulator
Click here to download the full size of the above Circuit.

The modulator is constructed of the sub-circuits "MixerGilCel. dsn", "phase_shift. dsn", and "Wilkinson. dsn". "Setup_IQ_demod_ckt. dsn" is a for a behavioral model extraction of "IQ_demod_ckt. dsn" using IQ_Demod_Setup. The result is in the dataset "Setup_IQ_demod_ckt. ds". "circuit_level_ramp. dsn" is a schematic for a circuit level Circuit Envelope simulation of "IQ_demod_ckt. dsn" with I_Q waveforms that have time-varying amplitude. The result is in the dataset "circuit_level_ramp. ds". "behavioral_level_ramp. dsn" is a schematic for a behavioral level Circuit Envelope simulation with I_Q waveforms that have time-varying amplitude. "IQ_demod_ckt. dsn" is modeled behaviorally with IQ_Demod_Data along with the dataset "Setup_IQ_demod_ckt. ds". The result is in the dataset "behavioral_level_ramp. ds". "circuit_level_QAM. dsn" is a schematic for a circuit level Circuit Envelope simulation of "IQ_demod_ckt. dsn" with I_Q waveforms for a 16 QAM modulation. The result is in the dataset "circuit_level_QAM. ds". "behavioral_level_QAM. dsn" is a schematic for a behavioral level Circuit Envelope simulation of with I_Q waveforms for a 16 QAM modulation. "IQ_demod_ckt. dsn" is modeled behaviorally with IQ_Demod_Data along with the dataset "Setup_IQ_demod_ckt. ds". The result is in the dataset "behavioral_level_QAM. ds". In Figure 1, a comparison of circuit and behavioral level results is given for Circuit Envelope simulation. Both...




Leave Comment

characters left:

Related Circuits

  • New Circuits

    .

     


    Popular Circuits

    DMM-ProfiLab 4.0
    Metal Detector with CS209A
    High-Low Voltage Cutout with delay
    Fiber-optic-receiver
    General Infrared Remote Controlled Relay
    Simple TV Transmitter circuit diagram (VHF)
    555 How can I make a 15 minute egg timer circuit
    Short Circuit Protection With A MOSFET
    magnet charger
    Help me Understand this Circuit Schematic
    ultrasonic switch circuit



    Top