小信号调谐放大器

Chap4 Chap3 Chap3 Chap5-6 Chap2 Chap7 Chap2 Chap5-6. Chap4. 1 Chap2. 2 Chap2 3. Chap3 4. Chap3 5. Chap4 6. Chap5 7. Chap6 8. Chap7 9. Chap8.1.2.3 LC () 2012 10 1 / 19

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.1 LC.2.3.4.5.6.7 () 2012 10 3 / 19

. 1 () 2012 10 4 / 19

. 1 () 2012 10 5 / 19

E c N 1 N 2 N 0. U 1 () 2012 10 6 / 19

E c N 1 N 2 N 1 N 2 N 0 N 0 U 3. U 1 U 2 () 2012 10 6 / 19

.. () 2012 10 7 / 19

.. () 2012 10 7 / 19

. 1 () 2012 10 8 / 19

K 1, K 2, K 01, K 02, K = K 1 K 2 K K 0 = K K 01 K (db) = K 1 (db) + K 2 (db) + K K 02 K K 0 (db) = K K 01 (db) + K K 02 (db) + () 2012 10 9 / 19

K 1, K 2, K 01, K 02, K = K 1 K 2 K K 0 = K K 01 K (db) = K 1 (db) + K 2 (db) + K K 02 K K 0 (db) = K K 01 (db) + K K 02 (db) + () 2012 10 9 / 19

K 1, K 2, K 01, K 02, K = K 1 K 2 K K 0 = K K 01 K (db) = K 1 (db) + K 2 (db) + K K 02 K K 0 (db) = K K 01 (db) + K K 02 (db) + K K 0 /db. 0 a a b 2 f ξ = Q L f 0 1.5dB 3dB db b 6dB () 2012 10 9 / 19

K 1, K 2, K 01, K 02, K = K 1 K 2 K K 0 = K K 01 K (db) = K 1 (db) + K 2 (db) + K K 02 B = 2 f 0.7( ) = f 0 n n 2 1 = 2 f0.7( ) 2 1 Q L K K 0 (db) = K K 01 (db) + K K 02 (db) + n > 1 n N n > 1 n N n 2 1 < 1 () 2012 10 9 / 19

. 1 () 2012 10 10 / 19

. () 2012 10 11 / 19

. U 1 N 0. N 1 N 2 U 2 N 0 N 1 N 2 E c U 3 f 0 f 0 + f d f 0 f d ± f d f 0 2 f ±ξ 0 = ±Q d L f 0 () 2012 10 11 / 19

..1 f 0 K 2 f.2 ξ 0 = Q d L f 0 ξ 0 ξ 0 ξ 0 < 1 ξ 0 > 1 ξ 0 = 1 ξ 0 > 1 ξ 0.3 f 0 f 0 K 0 K 0 ξ0 K 0 f0 = 1 1 + ξ 2 0 () 2012 10 11 / 19

..1 f 0 K 2 f.2 ξ 0 = Q d L f 0 ξ 0 ξ 0 ξ 0 < 1 ξ 0 > 1 ξ 0 = 1 ξ 0 > 1 ξ 0.3 f 0 f 0 K 0 K 0 ξ0 K 0 f0 = 1 1 + ξ 2 0 () 2012 10 11 / 19

..1 f 0 K 2 f.2 ξ 0 = Q d L f 0 ξ 0 ξ 0 ξ 0 < 1 ξ 0 > 1 ξ 0 = 1 ξ 0 > 1 ξ 0.3 f 0 f 0 K 0 K 0 ξ0 K 0 f0 = 1 1 + ξ 2 0 () 2012 10 11 / 19

ξ 0 = 1 ξ 0 1... f 0 Q L ξ 0 () 2012 10 12 / 19

ξ 0 = 1 ξ 0 1... f 0 Q L ξ 0 () 2012 10 12 / 19

() 2012 10 13 / 19

. 1 () 2012 10 14 / 19

E c N 1 N 2 N 1 N 2 N 0 N 0 U 3. U 1 U 2 () 2012 10 15 / 19

M E c n 1 n 2. L 1 L 2 U i U o M f 0 B = 2B K 0.1 = 3.16 () 2012 10 15 / 19

1 () 2012 10 15 / 19

1 () 2012 10 15 / 19

1 () 2012 10 15 / 19

. 1 () 2012 10 16 / 19

. 2-24 465kHz Q L = 40 B () 2012 10 17 / 19

. 2-24 465kHz Q L = 40 B. B = 2 f 0.7( ) = f 0 Q L n f 0 3 B = 2 f 0.7( ) = 2 f 0.7( ) 2 1 = 2 1 Q L () 2012 10 17 / 19

. 2-24 465kHz Q L = 40 B 10kHz Q L. B = 2 f 0.7( ) = f 0 Q L n f 0 3 B = 2 f 0.7( ) = 2 f 0.7( ) 2 1 = 2 1 Q L () 2012 10 17 / 19

. 2-24 465kHz Q L = 40 B 10kHz Q L. B = 2 f 0.7( ) = f 0 Q L n f 0 3 B = 2 f 0.7( ) = 2 f 0.7( ) 2 1 = 2 1 Q L f 0 Q L = 2 f 0.7( ) = 2 f 0.7( ) 3 2 1 () 2012 10 17 / 19

. 2-27 () 2012 10 18 / 19

. 2-27. () 2012 10 18 / 19

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