Complete Microstrip System Trainer.

§  Complete Microstrip System, Dual dc power supply and MIDE Design Software

§  Patch Antenna: At least five  microstrip patch antennas:
 
Centre frequency: 1-3.0 ±0.05GHz
 
Gain: 8dBi (typical)
 
Return loss: -17dB (typical at 3GHz)
 
Impedance: 50 ohm (typical at centre frequency)
 
§  Biasing  network
 
This component consists of three types of 50 ohm bias lines, two
 
ac and one dc, all utilising the quarter wavelength transformer:
 
 §  Bias line type Insertion loss (dB)
 
 3GHz Full band (2-4GHz)
 
 Butterfly 0.02 0.12
 
Pad 0.02 0.11
 
Direct dc short 0.02 0.08
 
§  Three-port circulator
 
 Insertion loss: 0.4dB (max at 3GHz)
 
Insertion loss: 0.5dB (max 2 - 4GHz)
 
 Isolation: 16 - 24dB (full band 2 - 4GHz)
 
 §  Hybrid ring (rat-race) filter
 
This is a standard 10 degree hybrid-rings (or Rat-race) coupler.
 
Centre frequency: 3.0 ±0.1GHz
 
Bandwidth: -3.2dB
 
 Isolation: 400MHz
 
 Impedance: 50 ohm
 
§  Ring resonator
 
 A loose-coupled resonant ring designed to resonate at a fundamental frequency of approximately 3GHz in its n = 2 mode.
 
 This component is used to measure the dielectric constant of the printed circuit board.
 
§  Low-pass filter
 
 A five-section, L-C type microstrip low-pass filter.
 
Pass band (nominal): dc - 3GHz
 
 Stop band: 3dB point at 3GHz (approx),rising to 20dB at 20% above cut-off Impedance: 50 ohm
 
§  Matched load
 
 A quarter wavelength long stub terminated in a standard, 50 ohm, thick film, chip resistance.
 
 Centre frequency: 3GHz
 
Return loss: -30dB (minimum)
 
 Input impedance: 50 ohm
 
§  Unmatched load
 
Three 50 ohm input lines terminated in unknown resistive loads.
 
 One incorporates a 1/4λ transformer with a centre frequency ≅3GHz, and one uses an open-circuited shunt stub element.
 
 §  Wilkinson power divider
 
A standard Wilkinson power divider using a standard 100 ohm chip resistance as the isolating element.
 
Centre frequency: 3GHz
 
Operating band: 2 - 4GHz
 
 Insertion loss: 3.5 ±0.25dB
 
 Isolation: 20dB (typical)
 
 Tracking: 0.15dB (typical over full band)
 
 Impedance: 50 ohm
 
 §  Voltage controlled oscillator
 
 The VCO is supplied with its own calibration curve and amplifier.
 
 Frequency range: 2.4 - 3.7GHz
 
 Power output: 12dBm (typical into 50 ohm)
 
 Tuning voltage range: 2 - 30V
 
 Modulated output frequency: 1kHz (variable 900 - 1100Hz)
 
 Modulation waveform: Square wave
 
 Modulator indicator: 2Hz flashing LED
 
     dc supply voltage: 15 - 30V (fully protected)
 
      dc supply current: 50mA (maximum)
 
Supply connectors: 4mm sockets
 
§  S-band MMIC amplifier
 
Gain: +15dB (typical)
 
 Compression point: -12dB (typical)
 
 Frequency range: 1.5 - 4GHz
 
Input impedance: 50 ohm
 
 Output impedance: 50 ohm
 
 Supply voltage: 15 - 30V (fully protected)
 
 Supply current: 30mA (typical)
 
 Supply connectors: 2mm sockets
 
 §  PIN diode Modulator
 
 Frequency range: 2 - 4GHz
 
Insertion loss (ON): -1dB (typical)
 
Insertion loss (OFF): -6dB (typical)
 
 Bias current (ON): 28mA (typical)
 
 Impedance: 50 ohm
 
 §  Ancillary equipment
 
Power supply: Dual output 30V dc
 
 0 to 30V dc variable2.5A
 
 Feedback dual power supply Is recommended
 
 Multimeter: Feedback bench-top digital
 
 multimeter is recommended
 
 §  Power requirements
 
Power supplies: 30V dc 2.5A
 
 VCO input: 0 - 30V dc 2.5A
 
 §  Dimensions and Weight (in protective case)
 
 Width: 520mm (20.5ʼʼ), Height: 380mm (15ʼʼ),
 
Depth: 125mm (4.8ʼʼ), Weight: 5kg (11lb).