An ISO 9001 Registered Company
www.taconic-add.com
Commercial and Government Entity (CAGE) Code: 1C6Q9
North & South America
Taconic - Headquarters
Petersburgh, NY 12138
Tel: 518-658-3202 / 1-800-833-1805
addinfo@4taconic.com
Europe/Middle East/Australia
Taconic International Ltd.
Republic of Ireland
Tel: +353-44-9395600
add@4taconic.com
Asia
Korea Taconic Company
Republic of Korea
Tel: +82-31-704-1858
sales@taconic.co.kr
China
Taconic Advanced Material (Suzhou) Co., Ltd.
Suzhou City, China
Tel: +86-512-6286-7170
tssales@taconic.co.kr
Benets & Applications
• Best in Class ermal Conductivity
• Low Loss Tangent
• No Glass Reinforcement
• Resists ermal Oxidation
• High Dimensional Stability
• High power applications such as
lters, couplers, dividers &
power ampliers
• Antennas
• Satellites
RF-35HTC
is a non-reinforced, low loss,
industry leading thermally
conductive laminate. e high 1.84 watts/M*K thermal conductivity
is well suited for any high-power application including ampliers,
couplers, dividers, lters etc. RF-35HTC is a ceramic/PTFE composite
that is very low in PTFE content. e extremely low loss of 0.0007 at 10
GHz makes RF-35HTC very attractive for any high-power application.
e high thermal conductivity is benecial for moving localized heat away
from transistors, capacitors, conductors, other components, or the dielectric
material. In hot environments exposed to oxygen, hydrocarbon (synthetic
rubber) based composites are prone to oxidation and higher than expected
electrical/thermal losses predicted from modeling. PTFE is attractive at
the highest of temperatures because PTFE resists any thermal oxidation.
Uniform distribution of ceramic in the dielectric ensures a uniform dielectric
in the X, Y, and Z directions. e low X and Y CTE ensures good
performance of lters over temperature. e low Z axis expansion ensures
stable performance of narrow band or broad band couplers over temperature
and stable signal to ground plane dielectric thickness (stable impedance)
over temperature. e low PTFE content of RF-35HTC facilitates plating
and drilling in printed circuit board fabrication. e high concentration of
ceramic contributes to improved dimensional stability. Taconic has avoided the
use of alumina that is abrasive to mechanical drilling or routing.
RF-35HTC High Thermal Conductivity Laminate
Power handling experiments were conducted on microstrip transmission lines with and without various capacitors at
the center of the microstrip to quantify the capability of the dielectric to spread thermal energy. e heat prole of the
microstrip, both with and without a capacitor, and any hot spots was captured using a thermal camera. Transmitted power
was increased to 200 Watts. Taconic’s RF-35HTC was compared to Taconic’s RF-35TC and RF-35TC-A, as well as to two
available competitive materials. In every case, the RF-35HTC dielectric material outperformed all other materials in
its ability to spread thermal energy, as shown on page 2.
RF-35HTC is compatible with all Taconic 1 oz copper with ULP 1 oz copper being recommended at high frequencies for
the lowest insertion losses. Please consult with your technical sales manager about which coppers are most suitable for your
applications when using 1/2 oz copper.
RF-35HTC
Comp1-HTC
RF-35TC-A
RF-35TC Comp2-350
RF-35HTC
Comp1-HTC
RF-35TC-ARF-35TC
TC-350
Power Handling of Microstrip Circuits Having No Capacitor
(tin nished)
Power Handling of Microstrip Circuits
Containing a COG Grade 47 pF High Q Capacitor by
Murata
Thermal Camera Imaging of Microstrip Circuits, Tin Finished,
No Capacitor (20 mil DT, 1oz Cu, 200 watts, 2.1 GHz)
Thermal Camera Imaging of Microstrip Circuits Having a 47 pF
Murata Capacitor (20 mil DT, 1oz Cu, 2.1 GHz, 200 Watts)
0
10
20
30
40
50
60
70
80
10
25
50
75
100
125
150
175
200
Temperature [℃]
Power [Watt] @ 2.1GHz
RF-35HTC
Comp1
-HTC
RF-35TC
RF-35TC-A
Comp2-350
0
20
40
60
80
100
120
140
160
180
10
25
50
75
100
125
150
175
200
Temperature [℃]
Power [Watt] @ 2.1GHz
RF-35HTC
Comp1-HTC
RF-35TC
RF-35TC-A
Comp2-350
Material ; 20mil / 1 oz
Circuit width ; 1.08mm
Circuit length ; 120mm
Capacitor ; 47pF
RF Signal Generator
Power Amplifier
50dB Coupler
DUT
Power-Meter
IR Camera
Power sensor
Attenuator
Isolator
Material; 20 mil / 1 oz
Circuit width; 1.08 mm
Circuit length; 120 mm
Capacitor ; 47 pF
Power Handling Test Conguration for Various Laminate Materials