How to understand RF coaxial connectors?

I. How to understand the RF coaxial connector? RF coaxial connector model by the nominal code and structure code composed of two parts, separated by a short horizontal line "-". The nominal code RF connector nominal code using the internationally recognized nominal code, specific products of different structural forms of naming by the detailed specifications to make specific provisions. Structure form code RF connector structure. 1. impedance: almost all RF connectors and cables are standardized for 50Ω impedance. The exception to this is the 75Ω system commonly used in cable TV installations. It is also important that RF coaxial cable connectors have a characteristic impedance that matches the cable. If this is not the case, a discontinuity is introduced and losses can result.2. VSWR (Voltage Standing Wave Ratio): Ideally this should be unity, and good design and implementation can keep the VSWR below 1.2 in the range of interest.3. Frequency Range: Nowadays most RF work is in the range of 1 to 10 GHz, and therefore the connector must have low losses in this region. For cases above 10 GHz - there is a lot of work going on now in the 10 to 40 GHz range - there are newer connectors which are chosen. They are as expensive as the cables themselves.4. Insertion Loss: This is the loss of the connector in the frequency range of interest. Losses are usually in the range of 0.1 and 0.3 dB. Determining how critical each watt (or fraction of a watt) is in most designs, even with such small losses, must be minimized and factored into the link loss budget. It is especially important in low-noise front ends when signal strength and signal-to-noise ratios are low. 5. Runtime Cycles: How many connect/disconnect cycles can a connection endure and still meet its specifications? This is usually in the range of 500 or 1000 cycles. For threaded connectors, the tightening torque specified by the supplier is an important factor in maintaining performance and reliability.6. Power: Power handling is determined by two resistive losses (heating) and insulation breakdown. While even decades of design were dominated by pre-processing tens of watts, today's design community focuses on low-power devices such as cell phones, femtocell and femtocell base stations, video interfaces, RF and gadgets. These are in the sub-1W range, so connectors can be much smaller and their power ratings are much less constrained.

-Second, on the international electronic products network platform related to the introduction and sales of products brief: international electronic products network - a professional agent / production / sales of all kinds of {connectors | wiring harness | wire and cable products }; if you have a related [connectors | wiring harness | wire and cable products] purchasing / sourcing needs or would like to buy / to understand which connectors | wiring harness | wire and cable products we can provide solutions, please contact the following Division Division I business personnel; If you have related [connectors | wire harness | wire and cable products] sales / resources and promotion needs, please click on the "¡¡ Business Cooperation ←" with the person to discuss!