August 1986

9

Philips Semiconductors

Product specification

UHF linear power transistor

BLW98

The circuit and the components are on one side of the PTFE fibre-glass board, the other side is unetched copper to serve

as a ground-plane. Earth connections are made by hollow rivets. Additionally copper straps are used under the emitters

and at the input and output to provide direct contact between the copper on the component side and the ground-plane.

Fig.10 Component layout and printed circuit board for 860 MHz class-A test circuit.

Note

Hole in printed-circuit board: Ø 9,7 mm.

handbook, full pagewidth

MGP725

47 mm

96 mm

L2

C1

C2

L1

C12

C3

C5

L3

C8

C9

band V

rivet

L4

C6

C11

+VCC

VBB