1. We get finally a multilayered LTCC three-stage bandpass filter with a small size and high frequency selectivity.

2. A novel spiral inductor resonator bandpass filter based on LTCC is proposed in this paper.

3. Thirdly, a dual-mode dual-band bandpass filter with rectangular-loop perturbation and stacked structure is presented.

4. A newly - designed digital bandpass filter for the dynamic balance machine is presented by sampling design method.

5. Adjusting the preset frequency of the bandpass filter amplifier, the weld full-penetration can be exactly controlled to a considerable extent.

6. Wherein the splitter uses a passive LC bandpass filter, it can divide signals coupled by the receiving coil into two.

7. We have made a varactor tuned bandpass filter and got a good agreement between the measured and theoretical results.

8. Passive Optical Device: WDM, attenuator, optical switch isolator , bandpass filter , modulator waveguide product.

9. A novel method to suppress the spurious response of microstrip bandpass filter is proposed in this paper.

10. The IF and its associated sidebands are up-converted to the microwave region by the mixer, microwave oscillator, and bandpass filter.

11. This paper presents a set of all - pole bandpass filter with equal inductances.

12. This paper presents a set of design formulae for all - pole bandpass filter with equal inductances.

13. Using shorted shunt stub structure as the parallel inductance coupling structures, it is very facilitate to design parallel inductance coupled bandpass filter.

14. It proves by practising that this designing method of microstrip pectinate bandpass filter and interlaced digital filter is simple and of good effect.

15. This paper presents a simple tracking filter circuit, which is applicable to Doppler radar sets and consists mainly of a switched bandpass filter and a phase-locked loop.

16. To measure phase accurately in the presence of harmonics for both noisy input signals, a technique based adaptive bandpass filter (ABF) and the method of interchanging signal channel is presented.

17. All the theoretical analysis and design procedures have been successfully verified by the design of an L-band broad stopband bandpass filter.

18. This system can be used mirror , Edge Filter , Bandpass filter, Window for laser, Telescope film etc.

19. It can construct a first order lowpass filter, a first order highpass filter, a second order lowpass filter and a second order bandpass filter.