High-Performance
Low-Loss RF Cables
The MTTA Series combines a low-density PTFE dielectric, silver-plated copper ribbon braid and multi-layer shielding for durable microwave interconnects across demanding environments.
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Illustrative high-performance RF coaxial cable assemblyChoose a cable by diameter & performance
All three models are 50 Ω cables. The smaller MTTA-460 minimizes diameter, while MTTA-630 has lower cable-only attenuation at the shared frequencies shown in the catalogue.
MTTA-460
4.50 mm26.5 GHz operating · 35 GHz cutoff · 2.5 kW listed peak power
Enquire about MTTA-460 ↗MTTA-520
5.20 mm26.5 GHz operating · 28 GHz cutoff · 5.6 kW listed peak power
Enquire about MTTA-520 ↗MTTA-630
6.00 mm18 GHz operating · 23 GHz cutoff · 10 kW listed peak power
Enquire about MTTA-630 ↗Electrical comparison
| Specification | Unit | MTTA-460 | MTTA-520 | MTTA-630 |
|---|---|---|---|---|
| Operating frequency | GHz | 26.5 | 26.5 | 18 |
| Impedance | Ω | 50 | 50 | 50 |
| Velocity of propagation | % | 76 | 76 | 76 |
| Dielectric constant | 1.73 | 1.73 | 1.73 | |
| Shielding effectiveness | dB | > 100 | > 100 | > 100 |
| Delay | ns/m | 4.38 (1.33) | 4.38 (1.33) | 4.38 (1.33) |
| Capacitance | pF/m | 87.7 (26.7) | 87.7 (26.7) | 87.7 (26.7) |
| Cutoff frequency | GHz | 35 | 28 | 23 |
| Withstand voltage | V DC | 1000 | 1500 | 2000 |
| Peak power (datasheet) | kW | 2.5 | 5.6 | 10 |
Operating frequency is distinct from cutoff frequency. Peak power values are catalogue ratings, not automatically continuous average-power ratings.
Cable-only attenuation vs frequency
Reference values from the supplied MTTA Series catalogue at 25 °C. Select model, frequency and length to estimate cable-only loss; connectors and mismatch are additional.
View complete attenuation and power-handling tables
| GHz | MTTA-460 dB/100m | MTTA-520 dB/100m | MTTA-630 dB/100m | 460 Power kW | 520 Power kW | 630 Power kW |
|---|---|---|---|---|---|---|
| 0.05 | 7.80 | 6.08 | 4.86 | 2.579 | 3.302 | 4.676 |
| 0.1 | 11.06 | 8.62 | 6.89 | 1.821 | 2.330 | 3.298 |
| 0.5 | 24.89 | 19.44 | 15.56 | 0.809 | 1.033 | 1.460 |
| 1 | 35.37 | 27.67 | 22.18 | 0.569 | 0.726 | 1.024 |
| 2 | 50.37 | 39.47 | 31.71 | 0.400 | 0.509 | 0.716 |
| 4 | 71.95 | 56.52 | 45.54 | 0.280 | 0.355 | 0.499 |
| 6 | 88.78 | 69.87 | 56.43 | 0.227 | 0.288 | 0.403 |
| 8 | 103.16 | 81.31 | 65.79 | 0.195 | 0.247 | 0.345 |
| 10 | 115.97 | 91.53 | 74.18 | 0.174 | 0.219 | 0.306 |
| 12 | 127.67 | 100.88 | 81.88 | 0.158 | 0.199 | 0.277 |
| 15 | 143.69 | 113.73 | 92.48 | 0.140 | 0.177 | 0.246 |
| 18 | 158.35 | 125.51 | 102.23 | 0.127 | 0.160 | 0.222 |
| 24 | 184.78 | 146.82 | — | 0.109 | 0.137 | — |
| 26.5 | 194.93 | 155.04 | — | 0.103 | 0.130 | — |
Power handling measured at 40 °C ambient, sea level and VSWR 1.1 as stated in the source. Blank cells mean no published value at that frequency.
MTTA Series: attenuation & power performance
Compare the published cable-only attenuation and average-power references for MTTA-460, MTTA-520 and MTTA-630. Each curve ends at that model's specified operating-frequency limit.
Attenuation vs frequency
Lower values indicate less cable-only RF loss per 100 metres.
Average power vs frequency
Published cable reference values; assembly and installation limits may differ.
Quick model comparison
| MTTA model | Jacket OD | Operating limit | Loss @ 1 GHz | Loss @ 18 GHz | Power @ 1 GHz |
|---|---|---|---|---|---|
| MTTA-460 | 4.50 mm | 26.5 GHz | 35.37 dB/100 m | 158.35 dB/100 m | 0.569 kW |
| MTTA-520 | 5.20 mm | 26.5 GHz | 27.67 dB/100 m | 125.51 dB/100 m | 0.726 kW |
| MTTA-630 | 6.00 mm | 18 GHz | 22.18 dB/100 m | 102.23 dB/100 m | 1.024 kW |
Figures shown are MTTA catalogue reference values. Cable-only attenuation is shown at 25 °C. Connector insertion loss and impedance mismatch are additional. Average-power ratings depend on applicable test and installation conditions.
Built for phase & amplitude stability
Six-layer cable system
- Silver-plated copper centre conductor
- ND-PTFE dielectric
- Silver-plated copper ribbon braid outer conductor
- PI/Al interlayer tape
- Silver-plated copper outer shield
- Blue FEP jacket
Applications
Electronic warfare, RF test setups, high-power interconnects, airborne and shipboard communications, base stations and wireless radio systems are applications listed in the catalogue.
The construction is specified in the source as intended to support long flex life and phase/attenuation stability versus bending.
Mechanical & environmental specifications
| Parameter | Units | MTTA-460 | MTTA-520 | MTTA-630 |
|---|---|---|---|---|
| CENTER CONDUCTOR | mm (in) | 1.02 (0.040) | 1.29 (0.051) | 1.57 (0.062) |
| DIELECTRIC | mm (in) | 3.05 (0.120) | 3.91 (0.154) | 4.72 (0.186) |
| OUTER CONDUCTOR | mm (in) | 3.25 (0.128) | 4.23 (0.167) | 5.02 (0.198) |
| INNER LAYER | mm (in) | 3.43 (0.135) | 4.32 (0.170) | 5.10 (0.201) |
| SHIELDING | mm (in) | 3.85 (0.152) | 4.76 (0.187) | 5.55 (0.219) |
| JACKET | mm (in) | 4.50 (0.177) | 5.20 (0.205) | 6.00 (0.236) |
| BEND RADIUS — minimum | mm (in) | 20 (0.787) | 25 (0.984) | 32 (1.260) |
| BEND RADIUS — repeated | mm (in) | 46 (1.81) | 52 (2.05) | 63 (2.48) |
| WEIGHT | g/m (lbs/ft) | 50 (0.034) | 60 (0.040) | 90 (0.060) |
| TEMPERATURE RANGE | °C (° F) | -55 to 200 (-67 to 392) | -55 to 200 (-67 to 392) | -55 to 200 (-67 to 392) |
Connector & assembly options
MTT offers complete assemblies with connector selections and custom lengths. Compatibility below follows the source catalogue.
| Connector type | Available models |
|---|---|
| SMA Female | MTTA-460 |
| SMA Male | MTTA-460, MTTA-520, MTTA-630 |
| SMA Male Right Angle | MTTA-460, MTTA-520 |
| TNC Male | MTTA-460, MTTA-520, MTTA-630 |
| N Female | MTTA-460, MTTA-630 |
| N Male | MTTA-460, MTTA-520, MTTA-630 |
| N Male Right Angle | MTTA-460 |
Request datasheet, pricing or samples
Tell us the cable model, frequency, preferred connectors, quantity and assembly length. Our team will confirm the configuration and provide the appropriate technical documentation.