Radio frequency (RF) connector assembly between components within a cable television module
The present disclosure is generally directed to a connector assembly that includes an increased outer diameter of the connector member relative to the equivalent G-type connector and an increased inner diameter of the receptable member relative to the equivalent G-type receptacle (also referred to as a seizure nut) to achieve higher current carrying capacity and target frequency rates of up to 3.0 Ghz, for example. In one preferred example, this results in a connector assembly consistent with the present disclosure having a connector member with an outer diameter of at least 10.70 mm, and more preferably 10.76±0.01 mm, rather than the 9.4 mm diameter of existing G-type connectors. Despite this increased diameter, a seizure assembly consistent with the present disclosure can achieve a functional impedance of 75 ohms to maintain nominal signal quality.
1. A radio frequency (RF) connector assembly for use in a housing having a cable television (CATV) module, the RF connector assembly comprising:
a connector member having a body with a mounting section to securely couple to the CATV module and a mating section, the connector member having a first electrical conductor that electrically couples to circuitry within the CATV module;
a receptacle member having a body with a mounting section to securely couple to the housing and a receptacle with a second electrical conductor disposed therein to receive the mating section of the connector member and electrically couple the second electrical conductor of the receptacle member to the first electrical conductor of the connector member;
wherein the mating section of the connector member has a first outer diameter OD 1 that is equal to or less than a first inner diameter ID 1 of the receptacle of the receptacle member, and wherein the first outer diameter OD 1 is at least 10 millimeters (mm);
wherein the receptacle member further includes an electrical insulator disposed between the second electrical conductor and a sidewall defining the receptacle;
wherein the electrical insulator comprises a first electrically insulating medium, at least one void, and a second electrically insulation medium;
wherein the at least one void is disposed off-center of the electrical insulator; and
wherein the second electrically insulating medium is disposed in the at least one void.
2. The RF connector assembly of claim 1 , wherein the first outer diameter OD 1 of the mating section of the connector member is 10.76±0.1 mm, or the first outer diameter OD 1 is 10.76±0.01 mm.
3. The RF connector assembly of claim 1 , wherein the first electrical conductor of the connector member has a second outer diameter OD 2 of 1.63±0.01 mm.
4. The RF connector assembly of claim 1 , wherein the second electrical conductor of the receptacle member has an overall outer diameter in a range of 1.45 mm to 1.70 mm.
5. The RF connector assembly of claim 1 , wherein the electrical insulator of the receptacle member comprises an acetal resin.
6. The RF connector assembly of claim 1 , wherein the first electrically insulating medium comprises a different medium than that of the second electrically insulating medium.
7. The RF connector assembly of claim 1 , wherein a characteristic impedance of the RF connector assembly is 75 ohms based on the first electrically insulating medium and the at least one void.
8. The RF connector assembly of claim 1 , wherein the at least one void has an inner diameter in a range of 1.58 mm to 3.175 mm.
9. The RF connector assembly of claim 1 , wherein the at least one void comprises a plurality of voids having a same or different inner diameter relative to each other.
10. The RF connector assembly of claim 1 , wherein the connector member has a cylindrical shape.
11. The RF connector assembly of claim 1 , wherein the connector member and the receptacle member are configured to removably couple together via the receptacle of the connector member.
12. The RF connector assembly of claim 1 , wherein the mating section of the connector member defines an aperture to receive the second electrical conductor of the receptacle member.
13. The RF connector assembly of claim 12 , wherein the aperture of the connector member has a second inner diameter ID 2 in a range of 1.45 mm to 1.70 mm.
14. The RF connector assembly of claim 1 , wherein the first electrically insulating medium is a solid and the second electrically insulating medium is a gas.
15. The RF connector assembly of claim 14 , wherein the second electrically insulating medium is air.
16. A cable television (CATV) amplifier, the CATV amplifier comprising:
a housing;
at least a first coaxial receptacle coupled to the housing to receive and removably couple to a coaxial cable, the first coaxial receptacle further including a receptacle member disposed in the housing, the receptacle member providing a receptacle having a first inner diameter ID 1 ;
an amplifier module disposed within the housing, the amplifier module having at least a first connector member extending therefrom, the first connector member having a mating section with a first outer diameter OD 1 ,
wherein the first connector member extends into the receptacle of the receptacle member to electrically couple an electrical conductor of the coaxial cable to circuitry of the amplifier module;
wherein the first outer diameter OD 1 of the mating section of the connector member is at least 10.70 mm;
wherein the receptacle member further includes an electrical insulator disposed between the second electrical conductor and a sidewall defining the receptacle;
wherein the electrical insulator comprises a first electrically insulating medium, at least one void, and a second electrically insulation medium;
wherein the at least one void is disposed off-center of the electrical insulator; and
wherein the second electrically insulating medium is disposed in the at least one void.
17. The RF connector assembly of claim 16 , wherein the at least one void comprises a plurality of voids having a same or different inner diameter relative to each other.
18. The RF connector assembly of claim 16 , wherein the first electrically insulating medium comprises a different medium than that of the second electrically insulating medium.
19. The RF connector assembly of claim 18 , wherein the first electrically insulating medium is a solid and the second electrically insulating medium is a gas.