| BPF | Band-pass filter |
| CF | Carrier frequency |
| ECT | Electrical capacitance tomography |
| GND | System ground |
| High-Z | High-impedance |
| IF | Intermediate frequency |
| LCR | Inductor-capacitor-resistor |
| low-Z | Low-impedance |
| PCB | Printed circuit board |
| RX | Receiver |
| RMS | Root mean square |
| SMD | Surface mounted devices |
| SNR | Signal-to-noise-ratio |
| TIA | Transimpedance-amplifier |
| TOSM | Through-open-short-match |
| TX | Transmitter |