For price, delivery, and to place orders, please contact Hittite Microwave Corporation:

20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373

Order On-line at www.hittite.com

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Evaluation PCB

The grounded Co-Planar Wave Guide (CPWG) PCB input/output transitions allow use of Ground-Signal-Ground

(GSG) probes for testing. Suggested probe pitch is 400um (16 mils). Alternatively, the board can be mounted in a

metal housing with 2.4 mm coaxial connectors.

Evaluation Circuit Board Layout Design Details

LM1 Evaluation PCB

LM1 Package Mounted to Evaluation PCB

Layout Technique

Micro Strip to CPWG

Material

Rogers 4003 with 1/2 oz. Cu

Dielectric Thickness

0.008” (0.20 mm)

Microstrip Line Width

0.018” (0.46 mm)

CPWG Line Width

0.016” (0.41 mm)

CPWG Line to GND Gap

0.005” (0.13 mm)

Ground Via Hole Diameter

0.008” (0.20 mm)

C1

100 pF Capacitor, 0402 Pkg.

C2

33,000 pF Capacitor, 1206 Pkg.

R1

1,000 Ohm Resistor, 0402 Pkg.

R2

100 Ohm Resistor, 0402 Pkg.

HMC283LM1

SMT MEDIUM POWER GaAs MMIC

AMPLIFIER, 17 - 40 GHz

v04.1201