Systems Engineering and Electronics ›› 2022, Vol. 44 ›› Issue (2): 365-375.doi: 10.12305/j.issn.1001-506X.2022.02.02
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Design of high-IF DBF system based on RF transceiver
Binbin WU1, Yinghui QUAN1,*, Guoyao XIAO1, Yachao LI2, Mengdao XING2
- 1. School of Electronic Engineering, Xidian University, Xi'an 710071, China
2. National Key Lab of Radar Signal Processing, Xidian University, Xi'an 710071, China
-
Received:2020-10-06Online:2022-02-18Published:2022-02-24 -
Contact:Yinghui QUAN
CLC Number:
Cite this article
Binbin WU, Yinghui QUAN, Guoyao XIAO, Yachao LI, Mengdao XING. Design of high-IF DBF system based on RF transceiver[J]. Systems Engineering and Electronics, 2022, 44(2): 365-375.
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Fig.1
Schematic diagram of transmission channel of high intermediate frequency architecture"
Fig.1
Fig.2
Schematic diagram of receiving channel of high intermediate frequency architecture"
Fig.2
Table 1
p×q spurious frequency distribution for FLO=16.5 GHz"
| q | p | Fsum/GHz | Fdif/GHz |
| 1 | 1 | 20.00 | 13.00 |
| 1 | 2 | 36.50 | 29.50 |
| 1 | 3 | 53.00 | 46.00 |
| 2 | 1 | 10.00 | 6.50 |
| 2 | 2 | 18.25 | 14.75 |
| 2 | 3 | 26.50 | 23.00 |
| 3 | 1 | 6.67 | 4.33 |
| 3 | 2 | 12.17 | 9.83 |
| 3 | 3 | 17.67 | 15.33 |
Table 1
Table 2
p×q spurious frequency distribution for FLO=18 GHz"
| q | p | Fsum/GHz | Fdif/GHz |
| 1 | 1 | 23.00 | 13.00 |
| 1 | 2 | 41.00 | 31.00 |
| 1 | 3 | 59.00 | 49.00 |
| 2 | 1 | 11.50 | 6.50 |
| 2 | 2 | 20.50 | 15.50 |
| 2 | 3 | 29.50 | 24.50 |
| 3 | 1 | 7.67 | 4.33 |
| 3 | 2 | 13.60 | 10.33 |
| 3 | 3 | 19.67 | 16.30 |
Table 2
Fig.3
High intermediate frequency architecture"
Fig.3
Fig.4
System block diagram"
Fig.4
Fig.5
Block diagram of transceiver board"
Fig.5
Fig.6
Physical transceiver board"
Fig.6
Fig.7
Block diagram of main control board"
Fig.7
Fig.8
Physical main control board"
Fig.8
Fig.9
Microblaze minimum system"
Fig.9
Fig.10
Schematic diagram of amplitude and phase calibration between transmitting channels"
Fig.10
Fig.11
Schematic diagram of amplitude and phase calibration between receiving channels"
Fig.11
Fig.12
DBF implementation flowchart"
Fig.12
Fig.13
Before amplitude and phase calibration between transmitting channels"
Fig.13
Fig.14
After amplitude and phase calibration between transmitting channels"
Fig.14
Fig.15
After amplitude and phase error compensation between transmitting channels"
Fig.15
Table 3
Comparison of amplitude and phase error compensation results between transmitting channels"
| 数据源 | 频段 | 最大幅度误差/dB | 相位误差/(°) |
| 文献[ | L、S | ±0.1 | ±1.8 |
| 本文 | Ku | ±0.1 | ±1.5 |
Table 3
Fig.16
Before amplitude and phase calibration between receiving channels"
Fig.16
Fig.17
After amplitude and phase calibration between receiving channels"
Fig.17
Fig.18
Schematic diagram of antenna array element arrangement"
Fig.18
Fig.19
Darkroom test environment"
Fig.19
Fig.20
Single beam simulation pattern with different pointing weights"
Fig.20
Fig.21
Measured directional patterns of transmitting single beams with different pointing weights"
Fig.21
Fig.22
Multi-beam emission spectrum when antennas are in different directions"
Fig.22
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