RF cables, adaptors & connectors
High-quality 50 Ω RF test cables and precision adaptors that connect your DUT to the instrument — N, SMA, 3.5 mm and BNC types from DC to 26.5 GHz, plus VNA cable kits, BNC connectors and general test leads.
Specifications from the Siglent RF Cable & Adaptor datasheet (EN02B).
RF test cables
Phase-stable 50 Ω cables with N, SMA and 3.5 mm connectors — choose by frequency, connector pairing and length.
- Frequency
- DC – 2 GHz
- Length
- 0.7 m
- VSWR
- ≤ 1.20
- Insertion loss
- ≤ 1.0 dB @ 2 GHz
- Impedance
- 50 Ω
- Frequency
- DC – 6 GHz
- Length
- 0.7 m
- VSWR
- ≤ 1.25
- Insertion loss
- ≤ 1.8 dB @ 6 GHz
- Impedance
- 50 Ω
- Frequency
- DC – 6 GHz
- Length
- 0.7 m
- VSWR
- ≤ 1.25
- Insertion loss
- ≤ 1.8 dB @ 6 GHz
- Impedance
- 50 Ω
- Frequency
- DC – 18 GHz
- Length
- 1.0 m
- VSWR
- ≤ 1.35
- Insertion loss
- ≤ 2.3 dB @ 18 GHz
- Impedance
- 50 Ω
- Frequency
- DC – 18 GHz
- Length
- 1.0 m
- VSWR
- ≤ 1.35
- Insertion loss
- ≤ 2.3 dB @ 18 GHz
- Impedance
- 50 Ω
- Frequency
- DC – 18 GHz
- Length
- 1.0 m
- VSWR
- ≤ 1.25
- Insertion loss
- ≤ 2.3 dB @ 18 GHz
- Impedance
- 50 Ω
- Frequency
- DC – 18 GHz
- Length
- 1.0 m
- VSWR
- —
- Insertion loss
- Low-loss RF cable
- Impedance
- 50 Ω
- Frequency
- DC – 26.5 GHz
- Length
- 1.0 m
- VSWR
- ≤ 1.30
- Insertion loss
- ≤ 2.0 dB
- Impedance
- 50 Ω
- Frequency
- DC – 26.5 GHz
- Length
- 1.0 m
- VSWR
- ≤ 1.30
- Insertion loss
- ≤ 2.0 dB
- Impedance
- 50 Ω
- Frequency
- DC – 26.5 GHz
- Length
- 635 mm
- VSWR
- ≤ 1.25
- Insertion loss
- ≤ 2.16 dB
- Impedance
- 50 Ω
- Frequency
- DC – 26.5 GHz
- Length
- 635 mm
- VSWR
- ≤ 1.25
- Insertion loss
- ≤ 2.16 dB
- Impedance
- 50 Ω
Also available on request (from the datasheet, not stocked): N (M)–SMA (F) 6/18 GHz cables, 2.92 mm 40 GHz and 2.4 mm 50 GHz precision cables, and 2.92 / 1.85 mm 40–67 GHz adaptors — contact us.
Connectors, adaptors & general cables
BNC and N/SMA adaptors, terminators and everyday 50 Ω patch cables for the bench.
Calibration, utility & test accessories
VNA calibration kits, utility kits and specialised test leads that live in this category.
Looking for a full VNA calibration kit? See all mechanical & electronic cal kits on the calibration-kits page.
Not sure which cable you need?
Tell us your connectors (N, SMA, 3.5 mm, BNC), frequency and length — we’ll match the right cable or adaptor, including higher-frequency options to 67 GHz.
Specifications are taken from the official Siglent RF Cable & Adaptor datasheet (EN02B) and are subject to change without notice; errors & omissions excepted. siglent.eu is operated by JRSE B.V., official EU distributor.