????????????W-CDMA?????????????

1
????????????W-CDMA?????????????
?????,Dong Ta Ngoc Huy,????,?? ?
?????? ?????????????????
2
????

• ??
• ??????????????
• ??????????
• ???

3
??
????????????????????
??????RF??????????
single-band
LNA,Mixer???????? LNA-Mixer????????
SAW filter
LNA
Mixer
SAW filter
???
multi-band
Multi-band LNA
Multi-band Mixer
???????????? ???????????
???
SAW filter
W-CDMA??Tx(???)???????????????
4
??????????Tx?????
??????? ????????
???????
1 B. Tenbroek, et al., ISSCC2008
?????LNA????????????????Tx?????? ?????Q???????????
???????
5
?????????
Q???????? ???????vx
vin?????????
?????Q??????????????????????
Q????????vx???(gp-gn?0 ? vx?8) ???
6
???????????
LNA
Mixer
notch
(A)
(B)
(C)
(A)
(B)
(C)
IM3
IM3
IM3
IM3
f
f
f
Rx
Tx
Rx
Tx
Rx
Tx
CW
CW
CW
???????????????3???????Tx?????3????????????????
???????????Mixer????3????? Tx????????3???????????
??
7
Tx????????
G IIP3
???????
IM3out (PblockerG)-2(IIP3in-Pblocker)
3PblockerG-2IIP3 2PTxPCWG-2IIP3
Pblocker(2PTxPCW)/3
??????????Tx??????????????????? Tx??????GsupdB??
?IM3?2GsupdB?????
8
Tx????????3???????
Mixer
notch filter
Gsup IIP3n
GMix IIP3Mix
LNA
Pblocker(2PTxPCW)/3
Pblocker2(PTxGsup)PCW/3
???????IM3n_out 2PTxPCW -2IIP3nGsup
MixerIM3Mix_out 2(PTxGsup)PCW -2IIP3MixGMix
IM3n_outGMixltIM3Mix_out IIP3ngtIIP3Mix-Gsup/2
????????????3??? ????????3??????????
??(Mixer)?IIP3?Tx???????????IIP3????????
9
?????????????
IM3???
45dBm
LnH 1 lmm 0.18
Q 10 wM1mm 60
C1pF 0.98 wM2mm 180
C2pF 5.6 GainMixerdB 10
fnotchGHz 1.92 IIP3MixerdB 5
Tx????????? Rx???????IM3???
10
??????????
Gsup-15,-20dB????IIP3notchltIIP3Mix-Gsup/2 ??????
???????3?????????
11
IM3????
Gsupgt-10dB???????? ?????IM3?????????
12
???

• ???????????????????????
• ????????????????
• ?????????????????????
• ????????Q?????????????????????
• ??????????????????
• Tx????????????????
• IIP3ngtIIP3Mix-Gsup/2
• ????????????Tx?????????????????IM3????????