57results about How to "Reduce the coupling coefficient" patented technology

A nonvolatile memory array has a single transistor flash memory cell and a two transistor EEPROM memory cell which maybe integrated on the same substrate. The nonvolatile memory cell has a floating gate with a low coupling coefficient to permit a smaller memory cell. The floating gate placed over a tunneling insulation layer, the floating gate is aligned with edges of the source region and the drain region and having a width defined by a width of the edges of the source the drain. The floating gate and control gate have a relatively small coupling ratio of less than 50% to allow scaling of the nonvolatile memory cells. The nonvolatile memory cells are programmed with channel hot electron programming and erased with Fowler Nordheim tunneling at relatively high voltages.

The invention provides a standing wave electron linear accelerator comprising accelerating chamber, coupling resonator, electron gun, microwave coupler, nose cone, titanium getter pump, thermostatic water jacket and tungsten target, wherein the nose cone is canceled from the accelerating chamber to be arranged in the couple resonator, two nose cones are arranged for each couple resonator on the front and rear end surfaces of the couple resonator. The accelerator by the present invention lowers the radial electric field intensity in the accelerating chamber, and maximize the output dosage.

A mobile payment through-connection-bridge communication distance balanced through-connection-bridge antenna comprises a 13.56MHz through-connection-bridge antenna, an outer ring helical antenna and an 8-shaped antenna formed by connecting two reversed rounding spiral coils in series. The 8-shaped antenna is inlaid in a ring of the outer ring helical antenna and is next to the ring of the outer ring helical antenna, the 13.56MHz through-connection-bridge antenna is located in a ring of a 13.56MHz reader antenna, and the outer ring helical antenna and the 8-shaped antenna are connected with respective through-connection-bridge chips. The antenna uses the through-connection-bridge chip with low receiving gain to connect the helical antenna which is arranged on the periphery and has a small number of rings to mainly receive mobile phone signals with weak shield, uses the 8-shaped antenna which is formed by series-opposing connection coils, arranged in the inner ring, and has a large number of rings to receive mobile phone subscriber identity module (SIM) sending signals with strong shield, uses the same 13.56MHz antenna for load debugging, can receive various signals sent by the mobile phones, enables the signals to be sent to the reader in the load debugging mode, and completes a signal transmission function from the mobile phones to the reader.

The invention discloses a mobile terminal with MIMO (Multi-input Multi-output) antennae. The mobile terminal comprises a medium base plate, a first circuit part and a second circuit part, wherein the first circuit part and the second circuit par are respectively arranged on the front face and the back face of the media base plate. The mobile terminal further comprises five antennae arranged on the front face of the media base plate, wherein the five antennae are distributed at the periphery of the first circuit part, and the five antennae are respectively connected with the first circuit part or the second circuit part by transmission lines; the directions of polarization of each two adjacent antennae are respectively orthogonal to each other; a first shielding cover is arranged on the first circuit part, a second shielding cover is arranged on the second circuit part, and the first shielding cover and the second shielding cover are grounded; and an air gap is reserved between each two adjacent antennae on the medium base plate respectively. By carrying out the technical scheme in the invention, under the condition that the volume of the mobile terminal is limited, the isolation between antennae is improved, thus the correlativity coefficient and the coupling coefficient of the MIMO antennae are greatly reduced, and the radiation characteristic of an MIMO antenna array is enhanced.