Design a T/R module
design_tr_moduleRead-only
Design a T/R (transmit/receive) module that shares ONE antenna between a transmitter and a receiver. Designs both chains through the existing engines, selects the shared front end (a T/R switch, or a circulator with a receive-path limiter), and returns four safety budgets: TX-to-RX isolation against the receiver's damage limit, the receive window left after switching and limiter recovery, limiter leakage driving the LNA into compression, and transmit power against each part's survivability rating. Pass frequencyGhz and targetOutputPowerDbm to design one; pass txPeakPowerDbm and isolationDb only to check a front end the user already described with their own numbers.
Input Schema
TableJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
| prfHz | No | Pulse repetition frequency in Hz, for a pulsed system. Omit and the switching/blanking budget is absent, not assumed. | |
| topology | No | Shared-antenna element. Omit to use tr_switch, which the result discloses. Choose circulator_limiter for high transmit power — if the stress budget reports over_limit for a switch, re-run with this. switch_and_circulator belongs to architecture array_element only (and is its only topology); any other pairing is refused. | |
| application | No | Application context, the same label design_rf_chain takes (e.g. drones, marine_radar, wifi_wlan). Every part is scored for it; free text is resolved to the nearest known label, and one that cannot be resolved is scored as 'general' with a warning saying so. Omit for 'general'. | |
| bandwidthHz | No | Receiver noise bandwidth in Hz. | |
| isolationDb | No | Transmit-to-receive isolation in dB, for the explicit-inputs path only. | |
| pulseWidthS | No | Transmit pulse width in seconds (e.g. 1e-6). | |
| architecture | No | front_end_only for a radio built on an integrated transceiver (drones): selects only limiter, preselector and LNA, ending at the transceiver input. array_element for ONE element of a phased array, beamformer port to antenna port: phase shifter + step attenuator shared by both paths, a low-power T/R switch and a circulator; requires beamformerDriveDbm. Omit for a full superheterodyne. | |
| frequencyGhz | No | Operating frequency in GHz (e.g. 9.4 for X-band). | |
| user_request | No | The end user's own words that prompted this call, verbatim. Used to verify that the figures you pass were stated by your user rather than inferred. Omit it and the results will be labelled caller-asserted. | |
| antennaFilter | No | array_element only: true to add a shared bandpass filter between the circulator and the antenna, charged to both paths. Off unless the user asks for it. | |
| requiredSnrDb | No | SNR needed at the demodulator, in dB. | |
| beamformerNfDb | No | array_element only: the beamformer's own noise figure behind the common leg, in dB. Omit it and the system noise figure at the beamformer port is withheld. | |
| txPeakPowerDbm | No | Peak transmit power AT THE ANTENNA PORT, in dBm. Pass this ONLY to check a front end the user already has — it skips design entirely. To design a module, pass targetOutputPowerDbm instead. | |
| transceiverNfDb | No | The transceiver's own noise figure in dB, front_end_only only. Omit it and system NF, MDS and sensitivity are withheld, never assumed. | |
| beamformerDriveDbm | No | array_element only: the input power at the beamformer port, in dBm, as the user stated it. Required for an array element — never assumed; the tool refuses and names it when absent. | |
| transmitBiasPulsed | No | Pulsed designs only: true when the user says the transmit amplifier bias (gate or drain) is switched off between pulses, false when it stays on. Omit when not stated — the idle draw between pulses is then counted as heat, and the thermal disclosures say so. | |
| antennaReturnLossDb | No | Antenna return loss in dB. Without it the antenna-mismatch leakage path is excluded and disclosed. | |
| targetOutputPowerDbm | No | Transmit output power the chain is designed to, in dBm (20 W = 43 dBm). Required — every safety budget is measured against it and no default is substituted. | |
| main_board_input_voltage | No | Board DC supply voltage in volts that the power tree steps down/up to the per-component rails (optional; defaults to 12 V). Set it when the user states their supply rail, e.g. a 14.8 V 4S battery or a 28 V bench input. Same meaning as on design_rf_chain. | |
| transmitDutyCyclePercent | No | Transmit duty cycle in percent (e.g. 10 for a 10% pulsed radar). Selects each part's PULSED survivability rating instead of its CW rating, which for a limiter is commonly 7 dB higher. Omit for continuous wave — the CW rating is then used, and a part declaring no pulsed rating keeps its CW one with that substitution disclosed. Redundant if prfHz and pulseWidthS are both given, which imply it. |