Ma Mingyuan

8 Questions 1 Answers 0 Followers

Questions related from Ma Mingyuan

What is the advantage for ME antenna compared with only piezoelectric antenna?

For magnetoelectric antenna ,we put a magnetostrictive(MS) layer on piezoelectric layer to radiate electromagnetic wave. But i find that the piezoelectric layer can also radiate electromagnetic...

04 January 2024 7,414 2 View

Why SAW only has strong magnetoelectric coupling in kHz but BAW can has strong ME coupling at GHz?

magnetoelectric devices based on saw mainly on low frequency but BAW can on GHz

10 September 2023 9,851 0 View

How to distinguish whether the magnetostrictive material and piezoelectric material occurring the ME coupling?

Will the magnetostrictive material and piezoelectric material occur the ME coupling definitely through the strain? Or need some certain conditions?

25 August 2023 913 2 View

What is the relationship between the natural polarization direction of the piezoelectric material and the polarization direction by electric field?

d31 mode and d33 mode of piezoelectric materials is decided by the strain direction and the polarization direction.But the materials have natural polarization direction and the external electric...

23 August 2023 425 1 View

Mass loading effect is available and true for all BAW resonators?

I deposited different thicknesses of FeGaB ranging from 100nm to 400nm on a BAW resonator but the resonant frequency does not change. According to the theory of mass loading effect, the resonant...

16 August 2023 6,705 1 View

How to calculate the demagnetization factor of a pentagon?

Different shapes have shape anisotropy of demagnetization factors

04 August 2023 3,541 1 View

What is the distance of far field radiation for a magnetoelectric antenna？

Is the ME antenna far field radiation is similar to the conventional electric antenna？When the distance is larger than 2L²/lamda（wave length of EM wave）

01 January 1970 6,175 1 View

Radiation efficiency of the magnetoelectric antenna

The radiation efficiency of the magnetoelectric antenna is related to the thickness of the magnetostrictive layer, generally speaking, hundreds nanometer level is better, but if you want to...

01 January 1970 8,911 0 View