摘要:
A method of operating an electronic device includes providing a plurality of antenna elements, evaluating a wireless communication performance criterion to obtain a performance evaluation, and assigning a first one of the plurality of antenna elements to a main wireless signal reception and transmission path and a second one of the plurality of antenna elements to a diversity wireless signal reception path based on the performance evaluation.
摘要:
A method of operating an electronic device includes providing a plurality of antenna elements, evaluating a wireless communication performance criterion to obtain a performance evaluation, and assigning a first one of the plurality of antenna elements to a main wireless signal reception and transmission path and a second one of the plurality of antenna elements to a diversity wireless signal reception path based on the performance evaluation.
摘要:
An antenna system may include a backplate that includes an end portion. The antenna system may also include first and second antennas spaced apart from each other along the end portion of the backplate. The antenna system may additionally include a parasitic element between the first and second antennas along the end portion of the backplate.
摘要:
An antenna system may include a backplate that includes an end portion. The antenna system may also include first and second antennas spaced apart from each other along the end portion of the backplate. The antenna system may additionally include a parasitic element between the first and second antennas along the end portion of the backplate.
摘要:
An antenna system may include a backplate that includes an end portion. The antenna system may also include a hybrid antenna that includes first and second antenna elements spaced apart from each other along the end portion of the backplate. The first antenna element may include a type of antenna element that is structurally different from the second antenna element. Additionally, the antenna system may further include a parasitic element between the first and second antenna elements along the end portion of the backplate.
摘要:
An antenna system may include a backplate that includes an end portion. The antenna system may also include a hybrid antenna that includes first and second antenna elements spaced apart from each other along the end portion of the backplate. The first antenna element may include a type of antenna element that is structurally different from the second antenna element. Additionally, the antenna system may further include a parasitic element between the first and second antenna elements along the end portion of the backplate.
摘要:
A method and a base station for determining a size of transmission blocks in a sub-frame. The method comprises: acquiring a physical resource block allocation number N′PRB and a transmission block size index I′TBS; determining a conversion relationship, and converting N′PRB and I′TBS, according to a conversion relationship, respectively into NPRB and ITBS used in existing calculation for the size of a transmission blocks; and according to NPRB and ITBS, calculating the size of the transmission blocks.
摘要:
A compressible and highly flexible plugging agent comprises the following components in parts by weight: 70-80 parts of natural rubber, 0.5-1 part of polyacrylamide (PAM), 1.5-3 parts of polyanionic cellulose (PAC), 0.5-1 part of biopolymer XC and 10-15 parts of ultrafine calcium carbonate; and the preparation method thereof comprises the following steps: adding the components in the weight parts into the natural rubber in order according to the common preparing method at normal temperature and pressure, mixing and stirring evenly, drying and then grinding into particles of 0.05-50 mm. The plugging agent is characterized by wide raw material sources, simple process, safe application, high plugging ratio and high compressibility, which is suitable for oil recovering and geological drilling applications.
摘要:
A drawer received in an electronic device includes a drawer assembly, two locking assemblies, and a drawer cover. The drawer assembly is for carrying a component of the electronic device, and is operable to move in and out of the electronic device via an opening of the electronic device. The two locking assemblies are fixed on the electronic device. The opening is located between the two locking assemblies. The drawer cover is rotatable connected to the two locking assemblies, and is for covering the opening to block the drawer assembly from inadvertently being detached out of the electronic device.
摘要:
A computer case includes a case, a main board, and a carrier. The case includes guiding members. The main board includes a first circuit board and a second circuit board. The first circuit board is attached to the case. The first circuit board includes a first connector. The second circuit board includes a second connector. The carrier includes a main body, a handle, and at least one latching member. The second circuit board is removably connected to the main body. Each latching member includes a rotary member and a rotary arm. The rotary member is rotatably connected to the main body and the rotary arm. The rotary member defines a receiving groove. The rotary arm is rotatably connected to the handle. When the second connector is connected to the first connector, guiding members stay in the receiving grooves to prevent the main body and the handle from moving.