RF Coaxial connectors can be used to transmit radio frequency signals with a transmission frequency range of up to 110 GHz. It has the advantages of small size, light weight, convenient use, etc., and is widely used in fields such as radar, communications, data transmission and aerospace equipment. With the development of these industries, the requirements for coaxial RF connectors are getting higher and higher, and the demand is also increasing.     The coaxial RF connector can be used to extend the RF cable or customize the RF cable on site. If you want to buy a suitable connector product, you should first know its characteristics.     1. There are many varieties and specifications. There are more than 20 international universal series of radio frequency coaxial connectors, with many subdivided varieties and specifications, so you need to distinguish carefully when purchasing.     2. Ensure electrical characteristics through mechanical structure. The radio frequency coaxial connector is a mechatronic product, which is essentially different from other low-frequency connectors. The quality of the mechanical structure directly determines the quality of the product.     3. The processing method of the part. The radio frequency coaxial connector is mainly processed by a lathe, and it is difficult to automatically assemble because of many manual operations. Therefore, the production cycle is longer than other connectors.     4. Product updates are slow. Coaxial RF connectors appeared relatively late, and current updates are relatively slow. There are several major signals in the market.     5. Production technology. Radio frequency coaxial connectors are labor-intensive products with a certain technical content, which require high production capacity of manufacturers.     6. Reasons for failure. The failure modes and mechanisms of RF coaxial connectors are complex, and professional RF engineers are required to perform failure analysis.

    A RF coaxial connector is an electrical connector designed to work at radio frequencies in the megahertz range. RF connectors are often used with coaxial cables and are designed to maintain the shielding provided by the coaxial design. A better model can also minimize the change in impedance of the transmission line at the connection. The following mainly explains the definition of RF radio frequency coaxial connectors and how to select and features!     Features of RF coaxial connectors     1. Wide variety of specifications: more than 20 international general series, more varieties and specifications.     2. The part processing is mainly turning machine processing, and there are many manual assembly operations, which makes it difficult to carry out automated assembly.     3. Relying on mechanical structure to ensure electrical characteristics, it is a mechatronic product, which is essentially different from other low-frequency connectors.     4. Product reliability, failure modes and failure mechanisms are complex.     5. Slow product update time.     Definition of RF coaxial connector     The radio frequency connector is defined as a separable component that is usually installed on a cable or equipment for electrical connection of a transmission line system. It can be seen from this definition that it has the common feature of the "detachable element" connector. "Transmission line system" refers to microwave transmission system.      RF connector selection     1. The selected RF connector must conform to the actual frequency range used.     2. The selected RF connector should have a smaller standing wave ratio.     3. When there is an IM requirement, the material and plating of the RF connector should be considered.     4. The selected RF connector should match the impedance of the matched RF connector or cable.     5. The EMC of the threaded RF connector is better than any bayonet, push-pull RF connector.     6. The selected RF connector should have a smaller insertion loss.     7. Under normal circumstances, the electrical performance of the straight RF connector is better than that of the bent type, and it can be selected according to the actual use.     8. When general radio frequency connectors meet the requirements, high-performance RF connectors are not used.     Some connectors can be used for radio frequency coaxial cables, printed circuit boards, frame drawer type functional components and their connection interfaces, but you must be familiar with the performance of the selected product before using it, and use it in strict accordance with the specified conditions, because overloaded use is very likely It will lead to failure of the coaxial connector, and special attention should be paid when connecting the cable connector. It is necessary...

    RF connectors are mainly divided into three categories: RF coaxial connectors, RF triaxial connectors and dual-core symmetrical RF connectors.     1. RF coaxial: mainly used to transmit transverse electromagnetic waves (TEM waves);     2. Radio frequency triaxial: mainly used in occasions with higher requirements for shielding efficiency, to transmit transverse electromagnetic waves (TEM waves) or transmit pulse waves;     3. Double-core symmetry: mainly used to transmit digital signals with a low speed.     Common RF coaxial connector applications and frequencies: RF connector type Application field Frequency  N High reliability, used in complex test environnent DC-18GHz QN N type quick plug version DC-6GHz F A typical representative of 75 ohns, dedi cated to thefield of cable TV, vith a difference betveen the inperial systen and the netric systen  DC-3GHz BNC Bayonet type, mostly used for low frequency test, ofetenused on oscilloscope  DC-4GHz TNC(BNC modified)  Shock resistance, nore comnon in portable radio DC-11GHz 7mm (Also knowm as APC-7) Non-polarity. generally used for high-precision instrunents such as netowork points, this thing is very expinsive  DC-18GHz HN High withs tand voltage, the hi ghest vorking voltage can reach 5kV, N-type high voltage version DC-4GHz LC Sui tavle for high power occasions DC-1GHz DIN7-16 (Also called7/16)  Very connon in cellular connunications DC-7.5GHz SMA Vide range of uses, fron oscilloscope to antenna feedsysten DC-26.5GHz QMA SMA quick plug version DC-5GHz SMB Digital connuni cation and radio equipment are comnon DC-4GHz SMC Yarious size and space restricted environnents DC-10GHz MCX Applications where veight and size are restricted DC-6GHz MCX More connon on RF circuit boards DC-6GHz SMP Miniaturized circuit board DC-40GHz BMA Blind mating type, very connon on board level DC-18GHz 3.5mm Used in high-precision high-frequency test Penvironnent, there are nany on the instrunent panel, but it is expensive DC-34GHz 2.92mm (K type)  K-band test is nost connonly used DC-40GHz 2.4mm Instrunent level testing, Keysight's netvork point did not use it less DC-50GHz 1. 85mm (V type)  Instrunent level, snall use, Anritsu's invention DC-60GHz 1.0mm Rolls-Royce class, ordinary people can't see it DC-110GHz

    There are more than 75 different RF Coaxial Connectors that can be used in wireless systems.      ROHO has developed a RF Connector Frequency chart that can be used as a reference chart to tell you the max frequency (cutoff frequency) of each connector type.      It is recommended not to operate RF Connectors above their max frequency limit to ensure electrical performance of the system.      You can narrow down on the list of connector by selecting the connector type, gender, geometry and other parameters.      You can download the data sheet or request a quotation on the connectors that meet your requirement.      Your inquiry will be directly contacted us, and will get a reply soon.     Here is the RF connector frequency chart.

    RF Coaxial connectors are widely used in microwave instruments,For example: Wireless Comprehensive Tester,Signal and spectrum analyzer,EMI receiver,Network Analyzer,Oscilloscope,Signal generator,Power meter,Low frequency measuring instrument,DC power supply,ect.     Wireless Comprehensive Tester    The wireless comprehensive tester is a radio frequency and protocol performance test equipment for mobile communication terminals. It has the following test functions:    Mobile RF performance and throughput test    Vehicle eCall and ERA-GLONASS system testing    VoLTE and VoWLAN voice test    Mobile A-GNSS test    POLQA and PESQ voice quality test    IP multimedia service test    Video performance test    IP connection security test    Signal and spectrum analyzer    Signal and spectrum analyzers are instruments and equipment for spectrum analysis and demodulation analysis of input signals. There are the following types:    Professional top-level spectrum analyzer, but also top-level ultra-wideband broadband signal analyzer, with the best performance indicators    General-purpose spectrum analyzer, also a general-purpose signal analyzer    Economical spectrum analyzer, usually with basic spectrum analysis function    Handheld spectrum analyzer, suitable for field test    The basic function of the spectrum analyzer is spectrum analysis, which depicts the power spectrum of the signal in the frequency domain. Another important function is the I/Q vector analysis of signal modulation. The top-level spectrum analyzer has the following functions:    The frequency range of the high-end spectrum analyzer host is DC~90GHz, which can be extended by external mixing for millimeter wave/THz testing    Spectrum test    Harmonic spurious test    Signal level statistical test    Channel power/adjacent channel power test    Noise power test    Intermodulation test    Real-time spectrum analysis    Radar signal analysis    I/Q signal analysis    Analog modem analysis    Digital/vector signal demodulation analysis    Group delay measurement    Power amplifier measurement analysis (distortion, frequency response, group delay)    Noise power ratio NPR measurement    Phase noise measurement    EMI test    Frequency hopping/transient analysis    Bit error rate test    2G/3G/4G/5G all standard communication signal analysis    Aviation navigation signal analysis    In this category of instruments, there are some special instruments for specific test items:    Measurement receiver: a measurement-grade instrument, specially used to measure signal sources or attenuato...

   SMP connectors play the role of connecting or disconnecting coaxial cables, microstrip circuits, and transmitting signals in microwave circuits. It is an important function to realize electrical connection and signal transmission between modules and modules, components and components, systems and subsystems, etc. element.    SMP connectors have good broadband transmission characteristics and convenient and reliable connection methods, and are widely used in many fields such as satellites, radars, and communications.    The welding of SMP RF connectors includes the following five processes:     1. Clean the mounting holes of the SMP connector and housing     2. Brush the soldering flux on the position to be soldered in the mounting hole     3. Install the SMP connector and solder ring in the mounting hole     4. Put the SMP connector into the mounting hole, press the plug of the spring pin against the SMP connector, and then fix the spring pin with the stopper and fix the stopper.     5. Weld the SMP connector with the shell     Standard welding operation is conducive to maintaining product consistency and quality stability.

    The TNC connector is the threaded version of the BNC RF connector, the full English name is Thread Neill-Concelman (threaded connector), for use in small and medium power applications.    The TNC series of products are developed and produced in accordance with the US military standard MIL-C-39012, which meets the requirements of the national military standard GJB681, and the connecting thread is 7/16-28UNEF. Therefore, it can be interconnected with similar products at home and abroad.    TNC type radio frequency connector, working frequency up to 6GHz, with low voltage standing wave ratio, stable performance, high reliability, etc., widely used in mobile phones, aviation control, telemetry, Bluetooth and GPS components, wireless base stations, microwave communications, radars, networks Equipment, antenna support, machine-to-machine communication, security equipment, testing equipment, etc.     The structure of the TNC connector is divided into two types, male or female, with standard polarity or reverse polarity, and the impedance specification is 50 ohms.    The shape is divided into straight type or 90 degree right angle type, partition type, 4-hole panel type or installation-free type.    The termination methods of these TNC coaxial connectors are clip/welding, crimping/welding, welding or welding/welding.

     SMA, 3.5mm and 2.92mm connectors all have similar mechanical characteristics which allows them to be mated to each other. However, because the dimensions of each connector are slightly different the connection is not ideal and does result in degraded electrical performance.     The outer diameter of a SMA Connector is about 4.13 mm (0.163 in) and the outer diameter of the of the other two connectors are 3.5 mm and 2.92 mm (IEEE-std-287 defines the connector interface names based on their outer diameter).     Practically, the degraded electrical performance is not very significant and can be ignored in many cases/applications. However if you are working on a very sensitive system, then you should use matching connector interfaces for connections.     A point to note when mating an SMA connector with a 3.5mm or 2.92mm connector, the SMA's pin engages first and the threads are second - Due to which the connection must be made carefully to avoid damaging the connectors. When mating the 3.5 mm and 2.92 mm connectors with SMA connectors the threads mate first and then the pin providing a more stable connection which is less likely to damage the connectors.     Similarly, 2.4mm and 1.85mm connectors are also compatible with each other. Compatible SMA 3.5mm 2.92mm 2.4mm 1.85mm SMA √ √ √ - - 3.50mm √ √ √ - - 2.92mm √ √ √ - - 2.4mm - - - √ √ 1.85mm - - - √ √