Overview
A phase stable coaxial cable is a high-performance RF cable designed to minimize phase variation under changing environmental and mechanical conditions. Unlike standard coaxial cables, which can exhibit significant phase drift when exposed to temperature fluctuations, bending, or flexing, phase stable cables maintain consistent electrical length and performance, ensuring reliable signal integrity in demanding applications.
Features
Phase Stability: Engineered to reduce phase shift caused by temperature changes, flexure, or mechanical stress.
Frequency Range: Available in versions supporting DC up to 110 GHz and beyond, depending on design.
Construction: Uses low-loss dielectric materials (e.g., PTFE variants, expanded PTFE, or proprietary composites) and precision manufacturing for minimal variation.
Flexibility & Durability: Designed for repeated flexing, suitable for lab test environments, production testing, and field use.
Connector Options: Compatible with precision RF connectors such as SMA, 2.92 mm, 2.4 mm, 1.85 mm,1.0 mm and others.
Applications
Vector network analyzer (VNA) measurements
Automated test equipment (ATE)
High-frequency device characterization
Aerospace, defense, and satellite communication systems
network analyzers, spectrum analyzers, and oscilloscopes
RF/microwave test benches and calibration equipment
missile guidance, drones, and satellite payload systems
Specification
| UniFlex LB400 |
| Structure Characteristics |
| Structure | Item | Standard Value |
| Inner Conductor | Material | Silver Plated Copper |
| Construction(mm) | 1/1.05 |
| Nom.Dia(mm) | 1.05 |
| Insulation | Material | LD-PTFE |
| Nom.Dia(mm) | 2.85 |
| Inner shield | Material | Silver Plated Copper Strip |
| Nom.Dia(mm) | 3.05 |
| Outer shield | Material | Silver Plated Copper Wire |
| Nom.Dia(mm) | 3.4 |
| Jacket | Material | Gray FEP |
| Nom.Dia(mm) | 4.00 |
| Electrical Characteristics |
| Item | Standard Value | Attenuation and Power handling@25℃ and Sea Level |
| Impedance( Ω ) | 50 | Frequency (MHz) | Attenuation (dB/ m) | Power handling(w) |
| Capacitance(pF/m) | 80 |
Velocity of Propagation | 83% | 500 | 0.26 | 252 |
Max Operating Frequency(GHz) | 40 | 1000 | 0.36 | 634 |
| 2000 | 0.51 | 447 |
Screening Effectiveness(dB) | ＞90 | 4000 | 0.73 | 315 |
| 6000 | 0.89 | 257 |
Dielectric Withstanding Voltage（V） | 500 | 8000 | 1.03 | 222 |
| 10000 | 1.15 | 198 |
Phase Change VS Bending(• /GHz) | ±0.2 | 12400 | 1.29 | 178 |
| 18000 | 1.56 | 147 |
Phase Change VS Temperature
@-45~ +85℃ | ≦750PPM | 26500 | 1.9 | 121 |
| 40000 | 2.35 | 98 |
| Mechanical & Environmental Characteristics | Replaceable Type |
Min Bending Radius (Static) | 20.0mm |
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Min Bending Radius (Dynamic) | 40.0mm |
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| Weight | 0.04kg/m |
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Operating Temperature | -55~+165℃ |
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Crosss Reference
| PART NO | Times | Alstrolab | Harbour | Semflex | GORE | IW | Micro-Coax | Carlise(Tensolite) | Huber+Suhner | Temp-Flex | Habia | TELEDYNE |
| UniFlex LA460 | SFT142 |
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| UniFlex LA520 | SFT205 | 32055 | LL142 |
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| UniFlex LA635 | SFT304 |
| LL235 |
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| UniFlex LA930 |
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| LL450 | HP450S |
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| UniFlex LA1200 |
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| UniFlex LA1500 | SFT600 |
| LL480 |
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| 4806 |
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| UniFlex LB150 |
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| UniFlex LB220 |
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| CXN3506 |
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| UniFlex LB310 |
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| CXN3500 |
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| TRUEBLUE125 |
| UniFlex LB360 |
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| CXN3507 | 1501 | UFB142A | TLL40-1130B | Sucoflex102 |
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| UniFlex LB400 |
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| UniFlex LB480 | HF190 |
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| CXN3449 | 1801 |
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| Sucoflex103 |
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| UniFlex LB510 |
| 32055 | LL235 |
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| UFB205A |
| Sucoflex104 |
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| UniFlex LB540 |
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| 2301 |
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| UniFlex LB740 |
| 32051 |
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| CXN3450 |
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| UniFlex LB780 | HF290 |
| LL335 | LA290 |
| 2801 | UFB311A |
| Sucoflex106 |
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| UniFlex LB810 |
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| CXN3508 |
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| UniFlex LC160 |
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| 047SC-2901 |
| STOM FLEX047 |
| UniFlex LC260 | Tflex-405 |
| SS405 |
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| MultiFlex-86 |
| Multibend-405j |
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| UniFlex LC400 | Tflex-402 |
| SS402 |
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| MultiFlex-141 |
| Multibend-402j |
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| UniFlex LC700 | Tflex-401 |
| SS401 |
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| Multibend-401j |
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| UniFlex LD360 |
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| UniFlex LD520 |
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| UniFlex LD780 |
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| UniFlex LD810 |
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| UniFlex LE147A |
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| UFA147A |
| Sucoflex102 |
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| UniFlex LE210A |
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| LL235 |
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| UFA210A |
| Sucoflex104 |
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| UniFlex LE290A |
| 32051 |
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| CXN3450 |
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| UniFlex LS360 |
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| UniFlex LS500 |
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| UniFlex LS800 |
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FAQ
Sample Delivery Time
Regular models require 15 days, while some complex connectors require 25 days.
Sample Fee
Most RF connectors are CNC-machined parts and do not require mold-making.
However, each part needs to be fine-tuned on the CNC machine. Typically, a single sample costs $200.
This fee will be refunded after a 5K bulk order.
Guarantee
Brass RF connectors come with a one-year warranty.
Stainless steel connectors come with a three-year warranty.
The lifespan also depends on the contact material beryllium contacts offer better durability.
ROHS & REACH Compliance
Our products fully comply with ROHS & REACH regulations.
Does LENORF Offer Military-Grade Products?
Yes. We are honored to provide military-grade products with exceptionally stable quality.
MOQ (Minimum Order Quantity)
Regular connectors: 500 PCS
Adapters: 100 PCS
Military connectors: 100 PCS
Materials
Common materials include:
Body: Brass, stainless steel
Insulator: PTFE, PEEK
Contacts: Brass, phosphor bronze, beryllium copper
Other: Aluminum, titanium alloy
What is impedance, and why is 50 Ω or 75 Ω important?
Impedance matching prevents signal reflection and power loss. 50 Ω: Standard for RF communication, test equipment, aerospace, defense. 75 Ω: Standard for broadcast, video, and cable TV applications.
What materials are RF connectors made of?
Body: Brass, stainless steel, or beryllium copper (with nickel, gold, or silver plating). Insulator: PTFE, PE, or advanced low-loss dielectrics. Contacts: Gold-plated brass or beryllium copper for low resistance and durability.
Are RF connectors weatherproof?
Some RF connectors are designed with gaskets and sealing (e.g., N-type, 4.3-10) for outdoor telecom, antennas, and harsh environments. Indoor lab connectors (e.g., SMA, BNC) are usually not weatherproof unless specified.
What’s the difference between male and female RF connectors?
Male: Has a center pin and usually an outer thread or bayonet. Female: Has a receptacle (socket) for the center pin and matching thread. Some connectors (like SMA) can be confusing because “reverse polarity” (RP-SMA) swaps pin/socket configuration.
