1 Introduction
2 Methods
3 Overview of the radio system implementation
3.1 RF board implementation
3.2 Antenna array
4 System and link budget analysis
5 Measurement results
5.1 Compression curves and coherence gain of the Rx
100 MHz | 200 MHz | 400 MHz | 800 MHz | |
---|---|---|---|---|
Coherence gain (dB) | 2.7 | 2.1 | 2.3 | 2.6 |
5.2 Linearity of the automatic gain control
5.3 Error vector magnitude of the Rx
5.4 Amplitude imbalance effect on the gain of the Rx array
5.5 Transceiver power consumption
Supply voltage (V) | Current consumption (A) | Power consumption (W) | PAE (per PA) | |
---|---|---|---|---|
Preamp 1 | 20 | 0.28 | 5.6 | |
Preamp 2 | 20 | 0.56 | 11.2 | 9% |
8 PA array | 20 | 6.4 | 128 | 12% |
8 LNA array, Switches, LO gen, Control logic | ||||
Mixer, RSSI, Attenuator | 6 | 1.33 | 7.98 | |
Switches, PA biasing, Attenuator | − 15 | 0.15 | 2.25 | |
Total power consumption | 155 |