RF coaxial connector technology wind direction — miniaturization high frequency
As the subdivision of electronic connectors, RF coaxial connectors have always been popular areas. Strictly speaking, the radio frequency connector is not exactly the same as the coaxial connector. The radio frequency connector is classified from the angle of the use frequency of the connector. The coaxial connector is classified from the structure of the connector.
The electrical performance of RF coaxial connector should minimize the impact on the transmission signal as much as possible. Therefore, the feature impedance and voltage resident wave ratio are important indicators of RF coaxial connector. The characteristic impedance of the RF coaxial connector determines the type of impedance of the cable connected to it. The voltage resident wave ratio reflects the matching level of the connector.
Low -residential waves and low loss have always been the direction of this type of product development. In addition, the promotion of the two key technologies of miniaturization and high frequency allows radio frequency coaxial connectors in addition to signal connection. The function of handling signals, such as filtering, adjustment, mixing and other functions.
TE radio frequency coaxial series
TE’s product series covers very wide coverage. In the field of aviation electronics and ground radar systems, TE’s microcoshaxia cable connector adopts smaller and lighter structures in the system to control and manage communication, and a smaller and lighter structure is used in the vehicle carrier computer for navigation and navigation and Power management. In the field of vehicle information systems and global positioning systems, TE’s FAKRA radio frequency compatible connector system helps to achieve high -frequency signal transmission. In terms of automotive information and entertainment systems, band-line radio frequency connectors and terminals provide low-cost solutions with complex voltage connections for high-frequency mobile communication applications (including WI-Fi and mobile TVs). In the Internet of Things (IoT) technology, the micro -coaxial cable connector (SMA and BNC) provides small -sized design, which has reliable performance and cost at the same time. The accuracy and stability are also at the international leading level. The TE radio frequency coaxial connector will provide extremely low voltage resident wave ratio (VSWR) and insertion loss.
(SMA radio frequency coaxial connector, TE)
The picture above is the SMA connector in the TE RF coaxial series. This series belongs to the connector system of the cable to the cable, and the structure belongs to 1 POSITIOS. The impedance of this series is 50Ω and the frequency can reach 18GHz. This type of radio frequency coaxial connector in the low -end application market is not much different in terms of electrical performance. At present, domestic manufacturers have many similar substitute products.
But in the high -frequency field, TE has now been able to achieve 110GHz, which is currently the leading high -frequency performance of the industry. The 90GHz and 110GHz high -frequency radio frequency connector and adapter launched by TE can provide low -insertion loss, the industry’s leading voltage resident wave (VSWR), and other electromechanical functions. Testing and measurement, AD & M, and wireless areas.
(High frequency RF coaxial connector, TE)
This type of high -end application connector is also 50Ω, and the insertion loss is extremely low, only 0.05*SQRT (F) DB. The voltage resident Bobby is the industry’s leading <1.25 @ DC 6-GHz and <1.35 @ 67-110GHz. Under the extremely low insertion loss and VSWR, the TE’s high -frequency radio frequency coaxial connector can be said to provide the current optimal connector matching level.
It is not difficult to see that TE is currently promoted in the field of radio frequency coaxial connectors in the direction of high frequency.
Rosenberger radio frequency coaxial series
Different from TE’s large -scale articles on high frequency, Rosenberger, a benchmark manufacturer of RF technology, has more achievements in miniaturization.
Rosenberger has developed a series of radio frequency coaxial connectors for future PCB applications. The spectrum includes right-angle and right-angle connectors in the innovation coaxial series, such as SMP, Longwipe SMP, P-SMP, mini SMP, FMC, Micro RF or multi-port connector, as well Or MCX.
Rosenberger surface installation connectors use patented SMCC (Surface Mount Coaxial Connector) technology, where the transition from coaxial to the plane is performed inside the connector. This patented function plus Rosenberger’s optimized PCB area will greatly reduce the development time of the new board.
(P-SMP series, Rosenberger)
The series in the figure above focuses on the smallest BOARD-TO-BOARD and maximum performance, and the frequency range covers 10GHz. Its axis deviation is only ± 1mm, and the smallest Board-To-Buard distance is 12.6mm. It is suitable for various applications of up to 200 firstname.lastname@example.org GHz.
On top of this series, Rosenberger also launched a Mini SMP, which should be the minimum connecter design currently available. MINI SMP also covers 65GHz at the same time as miniaturization. On the basis of P-SMP, MINI SMP made the minimum distance of Board-to-Buard 7.95mm. This series is very applicable for 40 GBIT/s high -speed interconnection applications.
For miniature radio frequency connectors, Rosenberger also achieves a very small size of 1.8 mm x 1.9 mm x 1.5 mm. Although Rosenberger is not as good as TE on the high -frequency application of RF coaxial connector, Rosenberger can be described as independent.
From the performance of the radio frequency coaxial connector of the two international mainstream manufacturers, it is enough to see the small and high -frequency technical direction of this product category. Domestic connector companies have also achieved high frequency in some areas (such as HDMI), but in high -end application fields such as aviation electronics, radar, 5G, etc., technology breakthroughs are still slightly behind international manufacturers, but the gap is gradually narrowing in the moment of technology convergence. Essence
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