LNA 설계 제안서

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LNA설계 제안서 입니다 ^^
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목차

1.LNA적용분야
2.LNA SPEC
3.진행계획

본문내용

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LNA SPEC
적용분야 IMT-2000
Parameter
Requirement
Units
Center Frequency
2.14
GHz
Bandwidth
60
MHz
Noise Figure
1.5
dB
Gain
20
dB
Gain Flatness
dB
Current Consumption
10
mA
Stability
Unconditionally stable
Input Return Loss
12
dB
Output Return Loss
15
dB
회로 구성
HEMT를 이용한 2단 증폭기
Lumped 소자를 이용한 Matching 회로
Teflon 기판 사용
Transistor Spec (HEMT)
ATF-38143 (Agilent Technologies)
Features
Low Noise Figure
High Dynamic Range
Low Cost
Suitable for Cellular and PCS Handsets
Surface Mount Package SOT-343
NF
ATF-38143 Electrical Specifications
Symbol
Parameters and Test Conditions
Units
Min.
Typ.
Max
Saturated Drain Current VDS = 1.5 V, VGS = 0 V
mA
90
118
145
Pinchoff Voltage VDS = 1.5 V, IDS = 10% of Idss
V
-0.65
-0.5
-0.35
Quiescent Bias Current VGS = -0.54 V, VDS = 2 V
mA
10
TransconductanceS = 1.5 V, gm = Idss /VP
mmho
180
230
Gate to Drain Leakage Current VGD = -5 V
A
500
-4 V
A
30
300
NF
Noise Figure
f =2 GHz
dB
0.6
0.4
0.3

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