Conversion Gain and Noise Figure Test Circuit
C2
fosc = 930 MHz
(0 dBm)
L6
L4
L3
L1
L2
8 p*
L5
D.U.T.
12 p
2SC4462
1k
200 µ
80 p
C3
fout = 30 MHz
RL = 50 Ω
C1
f = 900 MHz
0.047 µ
100
L1 : φ1 mm Enameled Copper Wire
L2 : φ1 mm Enameled Copper Wire
L3 : φ1 mm Enameled Copper Wire
L4 : φ1 mm Enameled Copper Wire
L5 : Bobbin φ5 mm inside dia, φ0.2 mm
Enameled Copper Wire 20 Turns
L6 : φ0.5 mm Enameled Copper Wire 1 Turn
inside dia φ6 mm
C1 : 20 pF max. Air Trimmer Condenser
C2, C3 : 1000 pF Air Core Capacitor
23
11
22
90°
20
90°
120°
13
90°
3
90° 130°
13
11
90° 90°
(Dimensions in mm)
* Disk Capacitor
Unit R : Ω
C:F
L:H
5