1. Introduction to waveguide components.
2. Gunn oscillator
i) Measurement of current vs. voltage characteristic of
Gunn
ii) Measurement of Gunn oscillator output power and
voltage.
iii) Measurement of Gunn oscillator frequency and
voltage.
3. Modulator and crystal detector
i) Operation of PIN diode modulator.
ii) Operation of crystal detector.
iii) Measurement of square law behavior of crystal
detector.
4. Propagation modes, wavelength and phase velocity in a
waveguide.
i) Measurement of frequency of source.
ii) Measurement of free space & guide wavelength and
verify waveguide law.
5. Q and bandwidth of resonance cavity.
i) Measurement of Q using power meter technique.
ii) Measurement of Q using SWR method.
6. Power Measurement
i) Direct Power Measurement
ii) Measurement of Power using Directional Coupler.
iii) Measurement of conjugate and Zo power.
iv) Measurement of power of modulated signal.
7. 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.
iii) Measurement of high SWR using a calibrated
attenuator.
8. Impedance Measurement
i) Measurement of unknown Impedance of load with
smith chart.
ii) To match an unknown impedance.
9. Waveguide Hybrid( Magic) Tee
i) Measurement 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.
vi) Measurement of VSWR of ports of Hybrid (Magic) Tee
10. 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.
11. Fixed and Variable Attenuator
i) Measurement of attenuation using the Power Ratio
method.
ii) Measurement of attenuation using the substitution
method.
iii) Measurement of low values of attenuation.
Iv) Measurement of VSWR and Insertion Loss.
v) Measurement of Insertion Loss of attenuator.
12.To study a cavity resonator type frequency counter.
13.To study wave guide to coax transition.
14. To establish a Microwave audio & PC-PC
communication link.
25. Waveguide coax adapter
26. X band Coaxial cable
25 Digital Gunn Power Supply
Voltage 2-10 V/500mA
PIN Mod 900-1100Hz/0-10V
RS 232 port PC comm.
MIC input Audio comm.
26 SWR Meter square Law
* X Band measurement range
* Low cost with high performance
* Shows Gunn, Klystrons, Magnetrons, DRO’s etc.
AM and FM modulation
* Relative power & VSWR measurement
* Observe Spurious outputs of Gunn, Klystron
* Observe leakage in waveguide Flanges
* Gain, coupling, loss measurement
Frequency range : 8.2GHz to 12.4 Ghz
Display : 16X2 Backlit LCD
Power : +20dBm to -30dBm
Measurement : dBm, dBr, mW, dBW, dBuW
With Digital Display
Resolution : 0.1, 0.5 and 1dB
Offset : For relative measurement
Level Indicator : Digital display and Bar Graph
Power : 100-240VAC, 47-63 Hz
Frequency Range : 8.2GHz to 12.4 GHz
Power range : +20dBm to -30dBm
Compensation : Temperature compensated
thermistor
Cable : Sensor/meter cable 3m
Frequency : 10.3 Ghz typical
Power level : 1mW typical
