Best Simulation Software for GSM 900/1800 MHz RF Detector Circuit Design

The discussion addresses the challenge of simulating GSM 900/1800 MHz RF signals for a cell phone detection circuit design. Proteus was found inadequate for generating these high-frequency RF signals directly. Suggestions include using a simulated sine wave source at 900/1800 MHz with appropriate amplitude and impedance settings to mimic antenna input. Incorporating a Phase Locked Loop (PLL) and Voltage Controlled Oscillator (VCO) is recommended for frequency generation when using microcontroller prescalers. Practical alternatives involve using hardware signal generators such as the Marconi or Slumberger test instruments, though these are costly (around £3000-£4000). Cheaper, hands-on approaches include building tuned circuits responsive to the target frequencies combined with microcontrollers (e.g., PIC microcontrollers) with ADC and serial output for detection and readout. Several DIY field strength meter designs and resources were shared to facilitate low-cost implementation. Emphasis was placed on direct component testing, correct component selection, and antenna design for effective signal reception and detection.
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