标题: SDR新书：Baseband Analog Circuits for Software Defined Radio [打印本页] 作者: sunygd 时间: 2016-5-18 14:42 标题: SDR新书：Baseband Analog Circuits for Software Defined Radio SDR新书：Baseband Analog Circuits for Software Defined Radio 4 W& Q5 @( T0 ]; m% W+ f6 c' _) G" G1 y' C
& f1 `+ _' F+ O& T# e9 w' tAuthor:6 U8 Y5 i9 n0 r0 R
0 W; |/ ^) g" W/ T% ^7 eVITO GIANNINI 2 \& k- O( Y& M7 J% k6 HJAN CRANINCKX . U8 J% W9 Z/ @: V, E# q
ANDREA BASCHIROTTO , z8 p. U+ k8 d/ K5 q- ~* l9 I3 WIMEC, Wireless Research, Leuven, Belgium # {( @6 i D: {IMEC, Wireless Research, Leuven, Belgium 4 s4 z z* y, P, g# {) w6 Y! I3 O
University of Salento, Italy 6 T: r9 I3 f G ) s8 k7 _( [0 a6 h4 t8 X / j1 }3 V l9 J* F+ i* f: V( z; hContents , l) j! P. [- P6 |- u2 {, R2 _Dedication v * k7 x" q* i) ]2 Q2 J
Preface xi H! B: v1 J8 k; y) [' P
Acknowledgments xv - G$ ]' ]+ ^5 j4 ]6 q- A# f1. 4G MOBILE TERMINALS 1 6 q8 t8 J9 @3 W. x
1.1 A Wireless-Centric World 1 4 Y0 U) K. p4 D2 w( s1.2 The Driving Forces Towards 4G Systems 3 ) r- ?7 f9 K6 W6 x
1.3 Basic Architecture For a 4G Terminal 6 @" H- N+ ~/ N4 h3 q s! ]+ R& H1.4 The Role of Analog Circuits 8 0 a2 A- Q! \5 }" Q+ @1 H$ ~1.5 Energy-Scalable Radio Front End 9 & y' F' l& j0 N) Q1.6 Towards Cognitive Radios 11 . d' [2 g4 W5 Z7 f( A# Q, N6 _
2. SOFTWARE DEFINED RADIO FRONT ENDS 13 % z! c$ B( g. e
2.1 The Software Radio Architecture 13 2 i6 P6 R7 z6 V+ K$ _+ p
2.2 Candidate Architectures for SDR Front Ends 16 v2 o) D' ^- L5 H" ~6 G
2.2.1 Heterodyne and digital-IF receivers 17 - r4 ~: X0 n$ Q2.2.2 Zero-IF receivers 19 , _7 T# |4 {/ f2.2.3 Digital low-IF receivers 22 ! _/ b7 o: ]0 k, Z2.2.4 Bandpass sampling receivers 24 ; L7 S5 _" F, N9 q8 `" y/ J; f
2.2.5 Direct RF sampling receivers 26 % N+ J. R1 L$ l' L# ?7 G6 O2.3 SDR Front End Implementation 27 ; @1 I6 b. I5 r/ s2 q
2.3.1 LNA and input matching 29 3 b9 z1 n( c" M6 ]6 X5 t2.3.2 Frequency synthesizer 30 9 \, s7 P/ D* l( @3 @6 M2.3.3 Baseband signal processing 31 % o' `( Q( \" Z, t0 v! ]8 _4 w2.3.4 Measurements results 31 - ~) s% M" i6 V) e2.4 Digital Calibration of Analog Imperfections 33 1 H' l7 D4 j7 c5 _2 n
2.4.1 Quadrature imbalance 34 6 m, J1 \3 v% B4 g
2.4.2 DC offset 36 0 k8 e- {2 K5 K/ g( pviii$ n% ?" J" a( Y) w
Contents ' F! z5 W2 S8 y5 W, i' H2.4.3 Impact of LPF spectral behavior 36 : o0 U- u2 e, `6 k
2.5 Conclusions 37 ' s$ s& s+ I& v! T% r
3. LINK BUDGET ANALYSIS IN THE SDR ANALOG ( a/ h' u i) R* g9 C$ h3 A
BASEBAND SECTION 39 $ z, `! H- n8 a3 b: w2 n
3.1 Analog Baseband Signal Processing 39 . W# u! Z9 a5 O/ M# r3.2 Baseband Trade-Offs for Analog to Digital Conversion 40 + ~5 ^9 Z4 {" [
3.2.1 Number of poles for the LPF 41 2 R& s$ [. k4 i p9 ]
3.2.2 ADC dynamic range 42 5 i ?& E5 L; k- n. E; n9 m; o3.2.3 Baseband power consumption estimation 47 6 q0 t y# v2 w0 f. U# `
3.3 Multistandard Analog Baseband Specs 48 % {' ~( h, C0 [3 A4 Q3.4 Multimode Low-Pass Filter 49 & U! a9 k" N* F( J# \
3.4.1 Filter selectivity 50 3 e8 o& y- V, h4 ~7 a+ x$ s6 x3.4.2 Filter noise and linearity 54 9 G: }: ?' p% x* [' I3.4.3 Filter flexibility planning 56 * _" ] Q' _7 w9 e: e8 p/ p! {7 F( P
3.4.4 Cascade of biquadratic sections 59 % G) D6 x7 W [, T* r: }% i
3.5 Automatic Gain Control 62 / i$ |& l& |* D4 {" L" C9 Q3.6 Conclusions 65 # H0 |) }' M% r' J
4. FLEXIBLE ANALOG BUILDING BLOCKS 67 # s+ P+ V F1 L$ |7 u
4.1 Challenges in Analog Design for Flexibility 67 4 O( k+ o$ l. G: f: s0 a4.2 A Modular Design Approach 68 4 g: _( p# o9 E' ? C* P9 M) L) |
4.3 Flexible Operational Amplifiers 70 5 g( p; ?! W9 V. }0 `4 u5 S! ?* @' q4.3.1 Variable current sources 70 4 l" [$ Y, d7 K/ |- H4.3.2 Arrays of operational amplifiers 71 6 z7 ?+ B6 `4 n2 H" m5 |
4.4 A Digital-Controlled Current Follower 75 4 w+ }' r8 z+ f( S: g( [
4.5 Flexible Passive Components 75 ( F" a) o) p! p3 M; o4.6 Flexible Transconductors 77 # p1 y+ |2 E5 Y7 w, q" [- A
4.7 Flexible Biquadratic Sections 78 9 V# v4 S0 B" _6 F$ R3 I
4.7.1 The Active-Gm-RC biquad 79 1 G2 I a# E4 c5 a" ^4.8 Conclusions 91 0 s4 F5 S2 g" x7 X
5. IMPLEMENTATIONS OF FLEXIBLE FILTERS FOR SDR $ m! ]- C9 ~, f+ E* i% O- H$ H- rFRONT END 93 8 S" ^. Y( h0 a% Y7 g5.1 State of the Art for Flexible CT Filters 93 ; \1 p$ _: X9 a8 w5.2 A Reconfigurable UMTS/WLAN Active-Gm-RC LPF 94 - t) E: f( _) T$ h; y
5.2.1 Filter architecture 96 ' n" R6 q9 q) |6 ^5.2.2 Automatic RC calibration scheme 97 % ]7 k. b, o9 d# @( n/ a4 v
5.2.3 Measurements results 102 3 k, D, h `5 @# ^7 V& P1 jContents, h% `) a7 f. ^: S( j) q4 f
ix 0 s4 E% a$ e1 Z) g
5.3 LPF and VGA for SDR Front End 105 # d9 o ^ |$ o) c$ U% o# y9 S y& S4 j
5.3.1 LPF and VGA architectures 107 ) I6 d: O5 c8 g/ j' g5.3.2 Prototype measurements 111 0 r/ V- ~' N' F4 ~$ j( w
5.4 Conclusions 118 0 t0 _2 o" `5 i! V( Q
Acronyms 119 - u0 Z, [, J1 c; XList of Figures 123 1 w+ J4 N7 p5 ]) S
List of Tables 129 + h( P! l3 ?2 Y4 ]6 L- m
References 131 & x! M' C! T& l4 s+ O) n
Index 139 0 d3 m/ n: I6 P) c z+ E) T1 {- `: y% G
