General Description

The HMC347 is a broadband non-refl ective GaAs MESFET SPDT MMIC chip. Covering DC to 20 GHz, the switch offers high isolation and low insertion loss. The switch features over 50 dB isolation at lower frequencies and over 40 dB at higher frequencies due to the implementation of on-chip via hole structures. The switch operates using two negative control voltage logic lines of -5/0V, requires no Vee and has no current consumption. The switch operates down to DC. The chip features coplanar I/Os that allow 100 RF testing prior to delivery to the customer.

Features

High Isolation: >40 dB @ 20 GHz

Low Insertion Loss: 1.6 dB @ 20 GHz

Non-Refl ective Design

Small Size: 1.3 x 0.8 x 0.1 mm

Typical Applications

This switch is suitable DC - 20 GHz applications:

• Fiber Optics

• Microwave Radio

• Military

• Space

• VSAT