Abstract:
A reader is provided, including a power amplifier (PA), a low-noise amplifier (LNA), a circulator, an auto-tuning matching network, and a control circuit. The PA emits a first RF transmission signal. The LNA transmits a first RF induced signal corresponding to the first RF transmission signal. The circulator is coupled between the PA and LNA, transmits the first RF transmission signal to an RF connection terminal or receives the first RF induced signal from the RF connection terminal. The auto-tuning matching network is coupled to the circulator, matches impedances between the circulator and the RF connection terminal. The control circuit is coupled to the auto-tuning matching network, adjusts the auto-tuning matching network to match impedances between the circulator and the RF connection terminal.
Abstract:
A method for controlling an antenna array is provided, which includes following steps. Associations with a plurality of mobile devices are established, and at least one characteristic parameter table corresponding to the mobile devices is generated. When a plurality of transmission request signals are received simultaneously and the mobile devices are divided into a user group, a multi-user antenna index of the antenna array is generated based on the at least one characteristic parameter table, and a plurality of data streams corresponding to the mobile devices are transmitted simultaneously through the antenna array. When the transmission request signals are received simultaneously and the mobile devices are not divided into the user group, a single-user antenna index of the antenna array is generated based on the at least one characteristic parameter table, and the data streams corresponding to the mobile devices are transmitted one-by-one through the antenna array.
Abstract:
A method for controlling an antenna array is provided, which includes following steps. Associations with a plurality of mobile devices are established, and at least one characteristic parameter table corresponding to the mobile devices is generated. When a plurality of transmission request signals are received simultaneously and the mobile devices are divided into a user group, a multi-user antenna index of the antenna array is generated based on the at least one characteristic parameter table, and a plurality of data streams corresponding to the mobile devices are transmitted simultaneously through the antenna array. When the transmission request signals are received simultaneously and the mobile devices are not divided into the user group, a single-user antenna index of the antenna array is generated based on the at least one characteristic parameter table, and the data streams corresponding to the mobile devices are transmitted one-by-one through the antenna array.