1、 KSKSKSKSKSKSKSK KSKSKS KSKSK KSKS KSK KS KS C IEC 60862 2 2： KS C IEC 60862 2： 2007(2012 ) 2007 11 30 http:/www.kats.go.krKS C IEC 60862 2： 2007 : ( ) ( ) ( ) : (http:/www.standard.go.kr) ： ：2007 11 30 ：2012 12 31 2012-0857 ： ： ( 02-509-7294) (http:/www.kats.go.kr). 10 5 , . KS C IEC 60862 2： 2007
2、i .1 1 1 2 2 3 .2 3.1 2 3.2 (response characteristics)5 3.3 8 4 .9 5 9 5.1 .9 5.2 11 5.3 .13 6 .25 6.1 25 6.2 26 6.3 .27 6.4 (IIDT) .35 7 .36 7.1 36 7.2 .40 7.3 .41 7.4 42 8 .43 8.1 43 8.2 .43 8.3 .44 9 .44 KS C IEC 60862 2： 2007 (2012 ) 2： Surface acoustic wave(SAW) filters of assessed quality Part
3、 2： Guidance on use 2002 2 IEC 60862 2, Surface acoustic wave(SAW) filters of assessed quality Part 2： Guidance on use , . , , , . , , 1 (KS C IEC 60682 1) . , . . (IDT) . , . , (UDT), (IIDT) . , GHz . , . . 1 TV, , , . , . 10 MHz 3 GHz 0.02 % 100 % . . . KS C IEC 60862 2： 2007 2 . IEC , , , , , . .
4、 , . 2 . . ( ) . KS C IEC 60682( ), IEC 60368 2 1： 1988, Piezoelectric filters Part 2： Guide to the use of piezoelectric filters Section One： Quartz crystal filters 3 . 3.1 3.1.1 (Surface Acoustic Wave： SAW) , 3.1.2 (Surface Acoustic Wave filter： SAW filter) . , . 3.1.3 (power flow vector) (poynting
5、) , 3.1.4 (propagation vector) 3.1.5 (power flow angle) 3.1.6 (SAW beam steering) 0 KS C IEC 60862 2： 2007 3 3.1.7 (SAW diffraction) (wavefront) ( ) 3.1.8 (SAW coupling coefficient： ks2) sssvvk= 22 vs/vs 3.1.9 (InterDigital Transducer： IDT) . . 3.1.10 (Unidirectional interDigital Transducer： UDT) 3.
6、1.11 (multiphase transducer) . . 3.1.12 (finger) 3.1.13 (dummy finger) 3.1.14 (split finger) 3.1.15 (bus bar) 3.1.16 (weighted-response transducer) . 3.1.17 3.1.22 3.1.17 (finger overlap or source strength) KS C IEC 60862 2： 2007 4 3.1.18 (apodization) 3.1.19 (withdrawal weighting) 3.1.20 (capacitiv
7、e weighting) 3.1.21 (series weighting) . . 3.1.22 (phase weighting) 3.1.23 (aperture) 3.1.24 (MultiStrip Coupler： MSC) , . 3.1.25 (reflector) (groove) 3.1.26 (spurious reflections) 3.1.27 (Triple Transit Echo： TTE) . . 3.1.28 (bulk-wave signals) 3.1.29 ( ) feed-through signals(signals of electromagn
8、etic interference) KS C IEC 60862 2： 2007 5 3.1.30 (suppression corrugation) 3.1.31 (acoustic absorber) 3.1.32 (shielding electrode) 3.1.33 (Interdigitated InterDigital Transducer： IIDT) 3 SAW , (IIDT multi-IDT) IDT IDT . 3.2 (response characteristics) 3.2.1 (nominal frequency) 3.2.2 (center frequen
9、cy) 3.2.3 (reference frequency) 3.2.4 (cut-off frequency) 3.2.5 (total power loss) 3.2.6 (insertion attenuation) KS C IEC 60862 2： 2007 6 3.2.7 (nominal insertion attenuation) 3.2.8 (relative attenuation) 3.2.9 (pass-band) 3.2.10 (pass bandwidth) 3.2.11 (pass-band ripple) 3.2.12 (TTE ripple) 3.2.13
10、(minimum insertion attenuation) 3.2.14 (stop-band) 3.2.15 (stop bandwidth) 3.2.16 (shape factor) 3.2.17 (group delay) 3.2.18 (nominal group delay) KS C IEC 60862 2： 2007 7 3.2.19 (group delay distortion) 3.2.20 (trap frequency) 3.2.21 (trap attenuation) 3.2.22 (transition band) 3.2.23 (reflection co
11、efficient) Za Zb , . babaZZZZ+ Za： Zb： 3.2.24 (return attenuation) . 20 logbabaZZZZ+dB 3.2.25 (reflected wave signal suppression) 3.2.26 (feed-through signal suppression) 3.2.27 (unwanted response) 3.2.28 (input level) , , KS C IEC 60862 2： 2007 8 3.2.29 (output level) , , 3.2.30 (nominal level) , ,
12、 3.2.31 (input impedance) , 3.2.32 (output impedance) , 3.2.33 (terminating impedance) 3.2.34 (available power) 3.2.35 (roll-off rate) (rise-up) . , . 3.2.36 (intermodulation distortion) ( ) 3.3 3.3.1 (transversal filter) . . 3.3.2 (frequency symmetrical filter) 3.3.3 (frequency asymmetrical filter)
13、 KS C IEC 60862 2： 2007 9 3.3.4 (dispersive filter) 3.3.5 (comb filter) 3.3.6 (resonator filter) 3.3.7 (ladder filter) 3.3.8 (lattice filter) 4 . , ( ). . 4 . (tuning) . 1 . 1 (KS C IEC 60682 1) 4.5.2 . . , , , . . . . . IDT IDT . 3 . , , IIDT . 5. 6. . , , , 2 . 5 5.1 . (Rayleigh wave) . KS C IEC 6
14、0862 2： 2007 10 1 . 103m/s104m/s , VHF, UHF . , , . 3 . Dn N , An . . , . H(f) f (DFT) . )2jexp()(1 =NnnnTfAfH =niinDT1(1) Tn： n An Dn . 4 . , . 2d RF . f0 (synchronization) . svdf =02 (2) vs： 2 5 . T(f) . 2sin)( =xxfT (3) 00)(fffNx= N： KS C IEC 60862 2： 2007 11 1 5.2 N . . , , . a) (apodization wei
15、ghting) 6 . . b) (withdrawal weighting) 7 . c) series(dog-leg) weighting 8 . TTE KS C IEC 60862 2： 2007 12 2 3 4 (100 %) KS C IEC 60862 2： 2007 13 5 4 , , f0 , N 6 7 8 5.3 9 2 . . TV IF . KS C IEC 60862 2： 2007 14 (IDT) . / . . 3 dB . 2 6 dB . 3 (TTE) (IIDT) (3 ) . ( 19 20 ) . (grating) . . , , . 9 ( ) 5.3.1 5.3.1.1 2 4 2 . a) (frequency symmetrical band-pass filter) . , . IF . . 10 70.0 MHz . . b) (frequency asymmetrical ba
