© The Institution of Electrical Engineers
A three-pole coupled resonator filter (CRF) based on the simultaneous excitation of surface skimming bulk waves (SSBW) and Bleustein-Gulyaev waves (BGW) with the same magnitude is described. This device operates at 1 GHz, has an insertion loss of 3–4 dB, a typical 1 dB bandwidth of 0.15% and can dissipate a power of more than 2W on a quartz substrate area of 3 mm2.
References
-
-
1)
-
Lee, D.L.: `S-band SSBW delay lines for oscillator applications', Proc. 1980, Ultrasonics Symposium, p. 245–250.
-
2)
-
M. Hikita ,
Y. Ishida ,
T. Tabuchi ,
H. Kojima ,
K. Kurosawa
.
(1987)
Miniature SAW antenna duplexer for portable telephone.
-
3)
-
Cross, P.S., Shreve, W.R., Tan, T.S.: `Synchronous IDT SAW resonators with Q above 10000', Proc. IEEE Ultrasonics Symp., p. 824–829.
-
4)
-
C.K. Campbell ,
C.B. Saw
.
Analysis and design of low-loss SAW filters using single phase unidirectional transducers.
IEEE Trans.
,
3 ,
357 -
367
-
5)
-
Bagwell, T.L., Bray, R.C.: `Novel STW resonators with low loss and high Q', Proc. 1987, Ultrasonics Symp., p. 319–324.
-
6)
-
I.D. Avramov
.
High Q metal strip SSBW resonators using a SAW design, IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control.
-
7)
-
Zibis, P.: `UHF low-loss SAW filters for front-end applications', Proc. 1986, Ultrasonics Symposium, p. 293–297.
-
8)
-
King, M.B., Heep, L.W., Andle, J.C.: `1500 MHz coupled resonator filter', Proc. 1987, Ultrasonics Symposium, p. 127–130.
http://iet.metastore.ingenta.com/content/journals/10.1049/el_19910262
Related content
content/journals/10.1049/el_19910262
pub_keyword,iet_inspecKeyword,pub_concept
6
6