Arlon Launches CLTE-AT Microwave & RF Laminate with Very Low Loss and Excellent Phase Stability

Arlon Inc. announced the availability of CLTE-AT, the latest addition to

the CLTE product line. CLTE-AT represents Arlon´s commercial offering

using common technologies developed for the high performance CLTE-XT

but modified to make the product more affordable for commercial

applications. To maintain its lower cost base, CLTE-AT has fewer options

for copper style and panel sizes.
CLTE-AT is a micro dispersed ceramic PTFE composite utilizing a very

fine woven fiberglass reinforcement to provide the highest degree of

dimensional stability and registration consistency, especially when

utilizing thin laminates such as 0.005" and

0.010". CLTE-AT has "Best-in-Class" Insertion Loss (S21) and Loss Tangent (0.0013) in the commercial

marketplace. To further improve performance in high-frequency

applications, CLTE-AT uses smoother copper styles with average surface

roughness (Rz) of less than or equal to 4.0µm

compared to many competitive offerings using rougher 9-10 µm

copper. This reduces insertion loss and transmission line resistance

while still maintaining peel strength required for thin traces on thin

laminates. For newer commercial millimeter wave applications, this

represents a significant performance enhancement over existing

technologies as skin effect losses become significant at higher

frequencies.
CLTE-AT has Low CTExyz (thermal expansion) and extremely low TCEr

(dielectric constant change with temperature). The low negative valued

TCEr and low positive CTExy nearly offset each other to provide a very

stable phase length and impedance values, even across wide temperatures.

The higher thermal conductivity of CLTE-AT also improves heat transfer

relative to alternative materials and enables better power handling.
Applications include temperature and loss sensitive filter applications

collision avoidance radar, adaptive cruise control, multi-layer RF PCBs

temperature stable antennas and other microwave and RF applications.
Visit Arlon´s website at: http://www.arlon-med.com