NJG1106KB2
n
RECOMMENDED PCB DESIGN
(Top View)
C3
NJG1106
RF IN
L2
C1
L4
RF OUT
L3
L1
C2
PCB SIZE: 14.0x14.0mm
PCB: FR4, t=0.2mm
MICROSTRIP LINE WIDTH=0.4mm(Zo=50W)
Parts List (f=810~885MHz)
Parts ID
L1
Constant
82nH
Comment
TAIYO-YUDEN HK1005 Series
TAIYO-YUDEN HK1608 Series
TAIYO-YUDEN HK1005 Series
TAIYO-YUDEN HK1005 Series
MURATA GRM36 Series
L2
33nH
L3
39nH
L4
12nH
C1
4pF
C2, C3
1000pF
MURATA GRM36 Series
NOTES:
1. Please use L1 to stabilize amplifier. This element pull input impedance down at low
frequency region (up to 400MHz).
2. Please use chip inductor which has low resistance at input circuit. (A low resistance inductor
of 1608 size (1.6mm x 0.8mm) is used in the circuit example above.) Because any losses at
input circuit cause NF degradation.
3. The capacitor C3 is a bypass capacitor connected with self-biasing resistor. The small signal
gain can be controlled by this capacitor. (Gain=18.5dB @ C3=30pF)
- 10 -
NJRC [ NEW JAPAN RADIO ]
