Characteristic

Symbol

Min

Typ

Max

Unit

FUNCTIONAL TESTS (Figure 1)

Common–Emitter Amplifier Power Gain

7.3

9.0

—

dB

Collector Efficiency

η

50

60

—

%

Load Mismatch

VSWR = 30:1 All Phase Angles)

ψ

No Degradation in Output Power

Figure 1. 400 MHz Test Circuit

C1, C2, C7, C8, C9 — 1.0–20 pF Piston Trimmer (Johanson JMC 5501)

C3, C4 — 36 pF ATC 100 mil Chip Capacitor

C5, C6 — 43 pF ATC 100 mil Chip Capacitor

C10 — 100 pF UNELCO

C11, C15 — 0.1

µF Erie Redcap

C12, C13 — 680 pF Feedthru

C14 — 1.0

µF 50 V Tantalum

L1 — 4 Turns #22 AWG Enameled, 3/16

″ ID Closewound with Ferroxcube

L2 — Ferroxcube VK200–19/4B Ferrite Choke

L3 — 7 Turns #18 AWG, 11/16

″ Long, Wound on a 100 kΩ 2.0 Watt Resistor

L4 — 6 Turns #20 AWG Enameled, 3/16

″ ID Closewound

L5 — 4 Turns #22 AWG Enameled, 1/8

″ ID Closewound

Z1 — Microstrip 0.2

″ W x 1.5″ L

Z2 — Microstrip 0.17

″ W x 1.16″ L

Z3 — Microstrip 0.17

″ W x 0.63″ L

R1, R2 — 10

Ω 2.0 Watt

Board — Glass Teflon

Input/Output Connectors Type N

DUT Socket Lead Frame Etched from 80–mil–Thick Copper

RF

INPUT

RF

OUTPUT

Z1

+

-

28 Vdc

Z2

Z3

C1

C2

C3

C4

L1

DUT

C5

C6

C7

C8

C9

C10

C11

R1

L5

C12

R2

L2

C13

C14

C15

+

-

L3

L4

2

REV 1