Industry News

What is Coaxial Cable?

2021-07-09

What is Coaxial Cable

 

The Coaxial Cable is a kind of broadband microwave Transmission Cable composed of two Coaxial Cylindrical Conductors with Radius a and b, filled with air or high frequency medium between the inner and outer conductors

 

 

Actually the Coaxial Cable consists of Protective Outer Jacket, Braid & the Dielectric Foil & the inside Conductor. The Transmission Electromagnetic Field mode of the Coaxial Cable is as follows:

Coaxial Cable transmits electromagnetic waves in TEM mode, and the cross-sectional electric and magnetic field distributions are as follows:

 

 

Finally, lets learn about the types of Connectors when using Coaxial Cables:

 

 

Connector type

Frequency  Limit

Dielectric

 

DIN 1.6/5.6

1 GHz

PTFE

 

BNC

4 GHz

PTFE

 

SMB

4 GHz

PTFE

 

OSMT

6 GHz

PTFE

 

OSX, MCX, PCX

6 GHz

PTFE

 

QMA

6 GHz

PTFE

 

MMCX

6 GHz

PTFE

 

7/16

8 GHz

 

 

SMC

10 GHz

PTFE

 

SMA

25 GHz

PTFE

 

TNC

15 GHz

PTFE

 

N

11 GHz

normal

18 GHz

precision

PTFE

 

APC-7, 7 mm

18 GHz

PTFE

 

OSP

22 GHz

PTFE

 

3.5 mm

26.5 GHz

Air

 

SSMA

38 GHz

PTFE

 

2.92 mm

40 GHz

Air

 

K

40 GHz

Air

 

GPO, OSMP, SMP

40 GHz

PTFE

 

2.4 mm

50 GHz

Air

 

1.85 mm

60 GHz

Air

 

V

60 GHz

Air

 

1 mm

110 GHz

Air