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Technical Library

RF Coaxial Cables and Custom Assemblies

RF Coaxial Cables and Assemblies — The feed line between radio and antenna is part of the antenna
RF Coaxial Cables and Assemblies

The feed line between radio and antenna is part of the antenna system: its loss, impedance and connector choice directly affect the delivered power and the system noise figure. Selecting the right coax is as important as the antenna.

Overview

Understanding rf coaxial cables and assemblies starts with the physics of the band, then moves through pattern, gain, mounting and the practical constraints of a live deployment. Cable loss rises with both frequency and length, so a long run at 5 GHz can dissipate far more power than the same cable at 900 MHz; choosing a lower-loss cable or shortening the run preserves link margin.

Frequency Bands and Spectrum

The bands most relevant to rf coaxial cables and assemblies are listed below. Each band brings different propagation, regulatory and antenna-size implications.

BandRange (MHz)Typical use
Wideband (700-2700 MHz)700-2700Multiband / all-cellular

Recommended Antenna Types

The following antenna classes are best matched to rf coaxial cables and assemblies:

Directional Panel Antenna

Sector / panel antennas delivering focused gain over a defined azimuth, used for base-station sectorization and fixed point-to-multipoint links.

Omnidirectional Fiberglass Antenna

Collinear omnidirectional antennas in a UV-stable fiberglass radome for 360 degree outdoor coverage.

Applications and Use Cases

RF Coaxial Cables and Assemblies support a range of deployments. The most common are:

  • Point-to-Point Backhaul
  • 4G / 5G Base-Station Coverage
  • In-Building DAS

Mounting and Installation

Route coax to avoid sharp bends below the rated radius, weatherproof outdoor connectors, and support long vertical runs to prevent strain on the connectors.

Lightning Protection and Grounding

The coax run is where the surge arrestor is installed, typically at the building entry, bonded to the single-point ground.

Standards and Compliance

Designs and deployments in this area commonly reference:

  • 50 ohm RF convention
  • RG-58/RG-174/RG-316/LMR-equivalent series
  • IEC 61169 connector families

Selection and Comparison

When narrowing down a model for rf coaxial cables and assemblies, weigh these trade-offs:

  • Thin flexible vs. low-loss cable
  • Frequency-dependent loss
  • Connector family selection

Typical gain for this category is n/a, usually terminated in a SMA / N / TNC / BNC connector, though the interface can be customized.

Recommended Antennas from astronwireless.com

The following models from our catalog match the requirements discussed above:

Related Topics

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RF Coaxial Cables and Assemblies in depth

The pages below break rf coaxial cables and assemblies down by band, by antenna class, by application and by how the antenna gets mounted, each with the catalog models that apply.

By frequency band

By antenna type

By application

By installation

Selection and reference

Frequently Asked Questions

What frequency bands do rf coaxial cables and assemblies use?

RF Coaxial Cables and Assemblies typically operate across Wideband (700-2700 MHz). The primary band spans 700-2700 MHz.

Which applications are rf coaxial cables and assemblies best suited for?

Common applications include Point-to-Point Backhaul, 4G / 5G Base-Station Coverage, and In-Building DAS. Cable loss rises with both frequency and length, so a long run at 5 GHz can dissipate far more power than the same cable at 900 MHz; choosing a lower-loss cable or shortening the run preserves link margin.

How should rf coaxial cables and assemblies be mounted?

Route coax to avoid sharp bends below the rated radius, weatherproof outdoor connectors, and support long vertical runs to prevent strain on the connectors.

What connector do rf coaxial cables and assemblies normally use, and can it be changed?

The usual interface is SMA / N / TNC / BNC. The connector and cable assembly can be customized — SMA, N-type, TNC, BNC, FAKRA and IPEX options are available on request.

Do rf coaxial cables and assemblies need lightning protection?

The coax run is where the surge arrestor is installed, typically at the building entry, bonded to the single-point ground.

Which standards apply to rf coaxial cables and assemblies?

Relevant standards and references include 50 ohm RF convention, RG-58/RG-174/RG-316/LMR-equivalent series, and IEC 61169 connector families.

How do I get a quote for rf coaxial cables and assemblies?

Use the antenna configurator on this page to specify your frequency, gain, polarization and mounting requirements. Submit the inquiry and an engineer from astronwireless.com will respond within one business day with matched models and pricing.