Next-Gen Telecom Networks

RF Connectivity for 5G Antenna Systems

A massive-MIMO panel can carry sixty-four transmit paths behind a single radome. Every one of them needs a feed that holds its phase, keeps its PIM below the sector noise floor, and fits in a space that was allocated before the connector was chosen.

Massive MIMO

Low PIM

Phase-Matched

N-Type

4.3-10

-160 dBc

PIM Floor

64T64R

Typical Array

≤1.15

Typical VSWR

Design Notes

What an Antenna Feed Has to Deliver

An antenna array is a phased system. Its performance is set as much by the consistency of the feeds as by the radiating elements.

Phase Matching

Beamforming works because the array knows the phase of every path. Feeds that differ in electrical length — or that drift apart with temperature — distort the beam and cost sector capacity.

PIM at the Feed

With dozens of high-power paths behind one radome, a single poor junction raises the noise floor for the whole array. Low-PIM discipline has to hold across every feed, not on average.

Space and Pitch

Feed density is set by the element spacing, which is set by the band. That constrains the connector body before any electrical requirement is considered.

Assembly Repeatability

Sixty-four hand-built feeds mean sixty-four chances to vary. Factory-terminated, measured assemblies remove the variable that field assembly introduces.

Serviceability

Panels are swapped at height and in weather. Interfaces have to re-mate to the same performance without a bench and without unlimited time.

Reference Data

Typical Feed Requirements

Array specifications vary by vendor and band. These are representative conditions for a sub-6 GHz massive-MIMO panel.

Parameter	Typical Requirement	Relevant Series	Note
PIM (2 × 43 dBm)	≤ -160 dBc	Low-PIM N-Type	Measured per feed, not averaged
Phase matching	±3° across the set	Phase-matched assemblies	Specify the set, not the part
VSWR	≤ 1.15 in band	N-Type, 4.3-10	Per series datasheet
Frequency	617 MHz – 6 GHz	N-Type, SMA	Sub-6 array bands
Ingress protection	IP67 mated	Outdoor series	Behind the radome is still outdoors
Temperature	-40 °C to +85 °C	All outdoor series	Solar loading under the radome

Our Role

What We Supply for Antenna Arrays

Low-PIM Feed Interfaces

N-type and panel-mount ports held to the PIM floor a live sector needs, with the plating and contact discipline that keeps them there.

Phase-Matched Sets

Feeds supplied as a matched set with measured data, so the array is commissioned against known numbers rather than assumptions.

Array-Scale Volume

Sixty-four feeds per panel adds up quickly. We manufacture in-house, so consistency holds from prototype through rollout.

Selected Products

Interfaces for Array Feeds

Common starting points for antenna feed interconnect. Send us the element pitch and the band and we will propose the format.

RF Connectivity for 5G Antenna Systems

What an Antenna Feed Has to Deliver

Typical Feed Requirements

What We Supply for Antenna Arrays

Interfaces for Array Feeds

N Female 4-Hole Flange Mount RF Connector – Field Replaceable, 18.35mm Hole Spacing, 0.38mm Pin Diameter

N Female 4-Hole Flange Mount RF Connector – Field Replaceable, 18.35mm Hole Spacing, 0.51mm Pin Diameter

N Male to N Male System Interconnect Low-Loss RF Cable Assembly – Use CFS830H Coax

N Male to N Male RF Adapter

Specifying an Array Feed Set?

RF Connectivity for 5G Antenna Systems

What an Antenna Feed Has to Deliver

Typical Feed Requirements

What We Supply for Antenna Arrays

Interfaces for Array Feeds

N Female 4-Hole Flange Mount RF Connector – Field Replaceable, 18.35mm Hole Spacing, 0.38mm Pin Diameter

N Female 4-Hole Flange Mount RF Connector – Field Replaceable, 18.35mm Hole Spacing, 0.51mm Pin Diameter

N Male to N Male System Interconnect Low-Loss RF Cable Assembly – Use CFS830H Coax

N Male to N Male RF Adapter

More in Next-Gen Telecom Networks

Specifying an Array Feed Set?