'Microwave test bench'

MICROWAVE LABORATORY

Microwave test bench

	FEATURES Study all the concepts of microwave transmission, various components used for microwave communication and their parameters. Table top benches using standard WR-90 waveguide components for study of Microwave communication and measurements. Microwave training benches and components are designed to work on the X-band frequency range. An exhaustive manual is provided along with the system, which provides detailed experimental procedure and complete explanation of the system. All the components are tested on Network analyzer for unparalleled performance.
1.MT-KLYATRON - Klystron based Microwave Trainer consist of : Klystron Power supply Klystron Mount: Klystron Tube: Isolator Frequency Meter: Slotted Section: Tunable Probe: Waveguide matched detector mount Shorting plate Movable short Matched termination VSWR meter: BNC to BNC cables (2 nos.) Wave guide stands (4nos.) Cooling fan Slide screw tuner precision micrometer type Experiments using Klystron modules: Introduction to microwave waveguide components. To study the Characteristics of Reflex Klystron To study Frequency, Guide Wavelength & free space Wavelength To measure the SWR & Reflection Coefficient To measure Impedance of a load To study Propagation modes, Wavelength and Phase Velocity in a waveguide. i)Measurement of frequency of source. ii)Measurement of free space wavelength and Guide Wavelength and Verify waveguide law. VSWR and reflection coefficient by Standing wave and Double Minimum Method i)Measurement of low and medium range SWR. ii)Measurement of high range SWR. 2.MT-GUNN - Gunn Diode based Microwave Trainer consists of : Digital Gunn Power supply: Gunn Oscillator: PIN-diode modulator Isolator Waveguide matched detector mount BNC to BNC cables (3 nos.) Wave guide stands (2nos.) Experiments using GUNN modules: Gunn Oscillator i)Measurement of current vs. voltage characteristic of Gunn diode. ii)Measurement of Gunn Oscillator output power and supply voltage. Modulator and Crystal Detector i) Operation of PIN Diode modulator. ii)Operation of Crystal Detector. iii)Measurement of square law characteristic of Crystal Detector. 3.ANTENNA- Polar Pattern and Gain Characteristics of Horn Antenna: Antenna rotator Pyramidal wave guide horn antenna Pickup Horn Antenna E-plane wave guide horn antenna H plane wave guide horn antenna Experiments Radiation pattern and Gain i) To study polar patterns and measure gain for the pyramidal horn antenna ii) To study polar patterns and measure gain for the E plane horn antenna iii) To study polar patterns and measure gain for the H plane horn antenna 4.DIELECTRIC- Dielectric Constant of Solid & Liquid: Solid Dielectric cell Solid Dielectric Liquid Dielectric cell with micrometer Experiments To measure dielectric constant of Solids. To measure dielectric constant of Liquids. 5.PHASE- Phase Shifter &Cavity: Waveguide Phase Shifter Waveguide Cavity Movable short Experiments To study Phase Velocity in a waveguide. To study a cavity resonator. Q and Bandwidth of resonance cavity i) Measurement of Q using power measurement technique ii)Measurement of Q using SWR method. 6.PASSIVE- Magic Tee/ Directional Coupler/ Isolator / Attenuator / Circulator: Directional Coupler ( 3nos.) Three Port T Circulator: E-Plane Tee: H-Plane Tee: Fixed Attenuator (3nos.) Variable Attenuator Micrometer type Magic-Tee (or Hybrid-Tee) Smith charts Experiments using Add-on Modules for Passive components: Impedance Measurement i) Measurement of unknown Impedance of a load using smith chart ii) To match an unknown impedance i) To study characteristics of Directional Coupler. Waveguide E-plane, H-plane and Hybrid(Magic) Tee i) Study of power division or decoupling between H-arm and E- arm of a Magic Tee. ii) Measurement of insertion loss of a Magic Tee. iii) Measurement of return loss of H arm of a Magic Tee iv) Study of power division of an E and H plane Tee v) Measurement of insertion loss of an E and H plane Tee vi) Measurement of VSWR of ports of E-plane, H-plane and Hybrid (Magic) Tee Properties of Directional Coupler i) Measurement of coupling factor ii) Measurement of directivity iii) Measurement of return loss of a load iv) Measurement of Main line insertion loss v) Measurement of VSWR of ports Isolators & Circulators i) To study insertion loss of isolators ii) To study isolation of isolators iii)To study insertion loss of circulators iv)To study isolation of circulators v)To study VSWR of circulator and Isolator vi)Measurement of high range SWR using a calibrated attenuator Fixed and Variable Attenuator i) Measurement of attenuation using the power ratio method ii) Measurement of attenuation using the RF substitution method iii)Measurement of low values of attenuation iv)Measurement of VSWR and insertion Loss v)Measurement of insertion loss of attenuator vi) Measurement of high range SWR using a calibrated attenuator 7.Power Meter( Optional ) Power Measurement i) Direct power measurement ii) Measurement of conjugate and Zo power iii)Measurement of power of modulated signal iv)Measurement of power division or decoupling between H-arm and E- arm of a Magic Tee v) Measurement of power division of an E and H plane Thee