Feeder & Leaky Cables
Low-loss corrugated RF feeders and distributed-coverage radiating cables for tower links, antenna infrastructure, tunnels and transit routes.
Two different RF cable jobs.
A feeder is designed to transfer RF with low insertion loss. A radiating (leaky) cable acts as a distributed antenna along the route, so it must be evaluated for both longitudinal attenuation and coupling to the surrounding space.
Corrugated feeder cables
For tower feeds, base stations, antennas and equipment transitions. Compare attenuation at your operating frequency, installed length, bend radius and available power.
Leaky / radiating cables
For tunnels, rail and enclosed infrastructure. Compare longitudinal cable loss, 50% coupling loss and service-band stop bands together.
Eight cable configurations.
Explore the product variants, their materials and their published engineering-reference data.
1/2 in Superflex Copper Feeder
MTT-FD12-SFCU
Short radio jumpers, tight equipment transitions and compact bends
Complete technical profile +
Construction & mechanical
- Impedance
- 50 ± 1 Ω
- Reference frequency band
- 10.6 GHz reference
- Centre conductor
- Copper-clad aluminium wire
- Centre conductor OD
- 3.56 mm
- Dielectric
- Foamed polyethylene
- Dielectric OD
- 9.30 mm
- Outer conductor
- Corrugated copper tube
- Outer conductor OD
- 12.30 mm
- Jacket
- Black PE or FRLSZH (specify when ordering)
- Jacket diameter
- 13.75 mm
- Propagation velocity
- 77%
- Capacitance
- 86 pF/m
- Cable mass
- 0.150 kg/m
- Bend radius
- 32 mm (repeated, source reference)
- Temperature
- −50 to +85 °C
Published RF performance
| FrequencyMHz | Cable-only lossdB / 100 m | Average powerkW |
|---|---|---|
| 450 | 7.04 | 1 |
| 900 | 10.2 | 0.69 |
| 2,400 | 17.5 | 0.4 |
| 5,000 | 26.8 | 0.26 |
1/2 in Flex Copper Feeder
MTT-FD12-CU
Fixed outdoor feeders, antenna and radio infrastructure
Complete technical profile +
Construction & mechanical
- Impedance
- 50 ± 1 Ω
- Reference frequency band
- 8.8 GHz reference
- Centre conductor
- Copper-clad aluminium wire
- Centre conductor OD
- 4.80 mm
- Dielectric
- Foamed polyethylene
- Dielectric OD
- 11.30 mm
- Outer conductor
- Corrugated copper tube
- Outer conductor OD
- 13.80 mm
- Jacket
- Black PE or FRLSZH (specify when ordering)
- Jacket diameter
- 15.8 mm
- Propagation velocity
- 87%
- Capacitance
- 76 pF/m
- Cable mass
- 0.201 kg/m
- Bend radius
- 70 mm single / 125 mm repeated
- Temperature
- −50 to +85 °C
Published RF performance
| FrequencyMHz | Cable-only lossdB / 100 m | Average powerkW |
|---|---|---|
| 450 | 4.77 | 1.57 |
| 900 | 6.91 | 1.09 |
| 2,400 | 11.8 | 0.63 |
1/2 in Flex Aluminium Feeder
MTT-FD12-AL
Proposed lightweight feeder requiring design and RF qualification
Complete technical profile +
Construction & mechanical
- Impedance
- 50 Ω target
- Reference frequency band
- To qualify
- Centre conductor
- CCA wire (source proposal)
- Centre conductor OD
- TBD
- Dielectric
- Foamed polyethylene
- Dielectric OD
- TBD
- Outer conductor
- Proposed corrugated aluminium tube
- Outer conductor OD
- TBD
- Jacket
- Black PE or FRLSZH; grade pending
- Jacket diameter
- TBD
- Propagation velocity
- TBD
- Capacitance
- TBD
- Cable mass
- TBD
- Bend radius
- TBD
- Temperature
- TBD
Published RF performance
RF frequency, insertion loss and power values are pending engineering qualification.
7/8 in Flex Copper Feeder
MTT-FD78-CU
Longer antenna tower, base-station and broadcast feeds
Complete technical profile +
Construction & mechanical
- Impedance
- 50 ± 1 Ω
- Reference frequency band
- 5 GHz reference
- Centre conductor
- Copper tube
- Centre conductor OD
- 9.10 mm
- Dielectric
- Foamed polyethylene
- Dielectric OD
- 21.50 mm
- Outer conductor
- Corrugated copper tube
- Outer conductor OD
- 25.20 mm
- Jacket
- Black PE or FRLSZH (specify when ordering)
- Jacket diameter
- 27.8 mm
- Propagation velocity
- 88%
- Capacitance
- 74 pF/m
- Cable mass
- 0.390 kg/m
- Bend radius
- 120 mm single / 250 mm repeated
- Temperature
- −50 to +85 °C
Published RF performance
| FrequencyMHz | Cable-only lossdB / 100 m | Average powerkW |
|---|---|---|
| 450 | 2.55 | 3.29 |
| 900 | 3.71 | 2.26 |
| 2,400 | 6.4 | 1.31 |
| 5,000 | 9.81 | 0.85 |
7/8 in Flex Aluminium Feeder
MTT-FD78-AL
Weight-sensitive feeder proposal needing isolated connector design
Complete technical profile +
Construction & mechanical
- Impedance
- 50 Ω target
- Reference frequency band
- To qualify
- Centre conductor
- Copper tube (source proposal)
- Centre conductor OD
- TBD
- Dielectric
- Foamed polyethylene
- Dielectric OD
- TBD
- Outer conductor
- Proposed corrugated aluminium tube
- Outer conductor OD
- TBD
- Jacket
- Black PE or FRLSZH; grade pending
- Jacket diameter
- TBD
- Propagation velocity
- TBD
- Capacitance
- TBD
- Cable mass
- TBD
- Bend radius
- TBD
- Temperature
- TBD
Published RF performance
RF frequency, insertion loss and power values are pending engineering qualification.
7/8 in Copper Radiating Cable
MTT-RD78-CU
Continuous tunnel, underground and transit-corridor coverage
Complete technical profile +
Construction & mechanical
- Impedance
- 50 ± 2 Ω
- Reference frequency band
- 2,700 MHz reference
- Centre conductor
- Copper tube
- Centre conductor OD
- 9.30 mm
- Dielectric
- Foamed polyethylene
- Dielectric OD
- Not supplied
- Outer conductor
- Punched/slotted overlapping copper strip
- Outer conductor OD
- 23.80 mm
- Jacket
- FRLSZH (JFL reference flame-barrier construction)
- Jacket diameter
- 28.5 mm
- Propagation velocity
- 89%
- Capacitance
- 75 pF/m
- Cable mass
- 0.55 kg/m
- Bend radius
- 350 mm single
- Temperature
- −40 to +85 °C
Published RF performance
| FrequencyMHz | Longitudinal lossdB / 100 m | 50% coupling lossdB |
|---|---|---|
| 450 | 2.67 | 69 |
| 900 | 4.34 | 63 |
| 1,800 | 7.7 | 59 |
| 2,400 | 11.68 | 57 |
1-1/4 in Copper Radiating Cable
MTT-RD114-CU
Extended rail-transit radiating routes with lower longitudinal loss
Complete technical profile +
Construction & mechanical
- Impedance
- 50 ± 2 Ω
- Reference frequency band
- 2,700 MHz reference
- Centre conductor
- Copper tube
- Centre conductor OD
- 13.10 mm
- Dielectric
- Foamed polyethylene
- Dielectric OD
- Not supplied
- Outer conductor
- Punched/slotted overlapping copper strip
- Outer conductor OD
- 34.00 mm
- Jacket
- FRLSZH (JFL reference flame-barrier construction)
- Jacket diameter
- 38.1 mm
- Propagation velocity
- 89%
- Capacitance
- 75 pF/m
- Cable mass
- 0.87 kg/m
- Bend radius
- 500 mm single
- Temperature
- −40 to +85 °C
Published RF performance
| FrequencyMHz | Longitudinal lossdB / 100 m | 50% coupling lossdB |
|---|---|---|
| 450 | 1.9 | 73 |
| 900 | 3.06 | 64 |
| 1,800 | 5.51 | 60 |
| 2,400 | 8.29 | 59 |
1/2 in Copper Radiating Cable
MTT-RD12-CU
Compact tunnels and confined radiating installations
Complete technical profile +
Construction & mechanical
- Impedance
- 50 ± 2 Ω
- Reference frequency band
- 2,700 MHz reference
- Centre conductor
- Copper-clad aluminium wire
- Centre conductor OD
- 4.40 mm
- Dielectric
- Foamed polyethylene
- Dielectric OD
- Not supplied
- Outer conductor
- Punched/slotted overlapping copper strip
- Outer conductor OD
- 11.40 mm
- Jacket
- FRLSZH (JFN / LS0H reference construction)
- Jacket diameter
- 14.7 mm
- Propagation velocity
- 88%
- Capacitance
- 76 pF/m
- Cable mass
- 0.23 kg/m
- Bend radius
- 200 mm single
- Temperature
- −40 to +85 °C
Published RF performance
| FrequencyMHz | Longitudinal lossdB / 100 m | 50% coupling lossdB |
|---|---|---|
| 450 | 5.74 | 65 |
| 900 | 9.4 | 58 |
| 1,800 | 21.97 | 55 |
| 2,400 | 27.93 | 52 |
No matching models. Try a different search or category.
Find the right route and installation envelope.
Review nominal outer diameter, reference frequency range and bend conditions before comparing RF data.
| MTT Part number | Function | Jacket OD | Reference band | VoP | Bend radius |
|---|---|---|---|---|---|
| MTT-FD12-SFCU | Feeder | 13.75 mm | 10.6 GHz reference | 77% | 32 mm (repeated, source reference) |
| MTT-FD12-CU | Feeder | 15.8 mm | 8.8 GHz reference | 87% | 70 mm single / 125 mm repeated |
| MTT-FD12-AL | Feeder | TBD | To qualify | TBD | TBD |
| MTT-FD78-CU | Feeder | 27.8 mm | 5 GHz reference | 88% | 120 mm single / 250 mm repeated |
| MTT-FD78-AL | Feeder | TBD | To qualify | TBD | TBD |
| MTT-RD78-CU | Radiating | 28.5 mm | 2,700 MHz reference | 89% | 350 mm single |
| MTT-RD114-CU | Radiating | 38.1 mm | 2,700 MHz reference | 89% | 500 mm single |
| MTT-RD12-CU | Radiating | 14.7 mm | 2,700 MHz reference | 88% | 200 mm single |
Copper feeder loss & power comparison.
These three copper feeder reference models have frequency-based tables in the catalogue. The two aluminium designs are still development concepts and have no reported loss or power ratings.
Copper feeder models with published points only.
Reference average-power values; conditions and final assemblies require confirmation.
Longitudinal loss and coupling are different.
Radiating cables intentionally leak RF energy to provide distributed coverage. These separate curves must be read together, not combined or directly ranked against non-radiating feeder power curves.
Lower loss means less reduction along the cable, not necessarily better field coverage.
Separate measurement from longitudinal attenuation; evaluate the installation as a coverage system.
Cable-loss estimator.
Use the documented frequency points and your proposed route length for a quick cable-only attenuation estimate. Radiating-cable results describe longitudinal attenuation, not local field coverage.
Uses loss in dB/100 m × length/100. Connector, adapter, mismatch, bend and installation effects are additional. Selectable frequencies are limited to exact source table points.
Specify the installation, not just the size.
Antenna towers & base stations
Calculate loss at operating frequency and run length. Check jacket environment, power handling, routing, weatherproof connections, PIM (where required) and grounding.
Tunnels, rail & indoor corridors
Define coverage geometry and service bands. Request longitudinal loss, coupling percentile, reference distance, radiation uniformity, stop bands, mounting and fire/smoke requirements.
Build your RF cable requirement.
Request a model datasheet, samples, custom construction or quotation. Include the application and installed route to help engineering select the right configuration.