Whether for satellite links, radar communications, or advanced test and measurement setups, signal integrity is non-negotiable. One critical factor is phase consistency and match across RF cable assemblies.
Normally two specifications are used for phase matched cables assemblies:
A) Time Delay Match
Measure the time delay of each cable assembly by VNA, mark the time delay data typically at the middle point of the frequency range.
Please refer to the test report example provided by RF ONE.
B) Electrical Length Match in Degrees at a Specified Frequency
Measure the phase of each cable assembly by VNA across the required frequency range.
Please refer to the test report example provided by RF ONE.
Thanks to our precisely controlled cable manufacturing process and highly skilled & experienced technicians, RF ONE is able to offer phase matched cable assemblies in very close tolerance at fast delivery and competitive price.
Our phase matched cable assemblies are available from DC through 110 GHz, and can be matched in a pair, or in a set to meet absolute or relative matching values such as +/- 1ps to 67 GHz or +/-3 degree through 18 GHz, or +/- 25 degree to 110 GHz.
When phase or delay matched cable assemblies are needed, please specify the below requirements:
1) Frequency of operation
2) Required phase match or delay match in ± xx ps or in ± xx degree@ x GHz
( please specify ± xxdB@ x GHz if amplitude matching is needed)
3) Quantity of cable assemblies in one set to be matched
4) Length of cable assemblies
5) Connector types of cable assemblies
The phase matching precision is relevant to the cable type, the cable length, the frequency and the quantity in a group. The higher precision, the higher cost it is.
We recognize that “precision” isn’t one-size-fits-all. Different applications require different levels of phase control, and budget constraints matter. To address this, we offer multiple phase accuracy tiers:
The above tiers are recommended to cable length shorter than 1 meter, please contact us at sales@rfone.cn for longer cable phase matching requirements.
For 0.5 meter（or shorter) length cable assemblies, these phase matching tolerance are common: ±3 ° to 6 GHz, ±5 ° to 18 GHz, ±10 ° to 40GHz, ±15 ° to 67 GHz.
