What circuit boards do we do? (47)
CLTE-XT High Frequency PCB
Introduction
Rogers CLTE-XT laminates are composites of micro-dispersed ceramic
filler, PTFE and woven fiberglass reinforcement, designed to
improve loss tangent while maintaining good dimensional stability.
These laminates demonstrate an exceptionally low coefficient of
thermal expansion (CTE) in the planar direction, making them
particularly suitable for precision applications involving embedded
resistors.
Among PTFE-based dielectric materials, CLTE-XT exhibits one of the
lowest performance variances available in the market today. The
product line supports comprehensive metal cladding options to
accommodate diverse design needs, including standard
electrodeposited copper, specialized reverse treated foil,
high-performance rolled copper variants, and other specialty
conductor materials.
Features
A key distinguishing feature of CLTE-XT laminates is their
ultra-low dissipation factor, measuring just 0.0010 at 10 GHz
operating frequency. This characteristic enables significant
reduction in circuit losses while preserving the material's
inherent dimensional stability - a critical combination for
high-frequency designs.
The material's Z-axis thermal expansion characteristics are equally
impressive, with a CTE of 20 ppm/°C, ensuring exceptional
reliability for plated through-hole structures even under repeated
thermal cycling conditions.
The CLTE - XT laminates have a stable dielectric constant across
wide temperature ranges, with a tolerance of just +/-0.03. It
ensures minimal signal distortion and optimal impedance control,
giving you that extra edge in your RF applications.
PCB Capability
From a manufacturing perspective, our factory demonstrates
exceptional capabilities in producing CLTE-XT PCBs. We support
virtually all standard construction types, including single-sided,
double-sided, conventional multilayer, and advanced hybrid board
architectures.
You can select from an extensive range of dielectric thicknesses
spanning from 0.130mm (5.1 mil) to 1.524mm (60 mil) to meet
specific impedance control requirements.
Copper weights of 1 oz (35µm) and 2 oz (70µm) are available for
CLTE-XT PCB.
The largest panel we can handle is 400mm × 500mm. It can be a
single board with this size or different designs within this size.
Multiple solder mask color alternatives including green, black,
blue, red, yellow and purple are offered for visual identification
and aesthetic purposes.
Surface finish selections encompass the full spectrum of
industry-standard options such as immersion gold, HASL, immersion
silver, immersion tin, ENEPIG, bare copper, OSP, and specialized
pure gold.
Typical Applications
CLTE-XT PCB has found extensive use in crucial areas such as
Advanced Driver Assistance Systems (ADAS), microwave patch
antennas, phased-array radar antenna systems, and high-power RF
amplifier circuits etc. Its outstanding performance in
high-frequency and high-reliability applications makes it an ideal
choice for these cutting-edge technologies.
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