On-board heat dissipation can be achieved in radio frequency (RF) modules by integrating a heat sink into the RF module's antenna reflector. Said integration achieves a compact and aesthetically pleasing RF module design that reduces the overall footprint of modular active antenna systems (AASs). Embodiment antenna reflectors include portions that are perforated and/or exposed to free flowing air to provide enhanced heat dissipation capability.

Active antenna system (AAS) radio frequency (RF) module with heat sink integrated antenna reflector

The invention provides an all airspace active multi beam spherical phased array antenna direction diagram measurement system. The provided measurement system has the advantages of flexible control, high directional accuracy and low cost, and uses electric scanning to replace mechanical scanning. According to the technical scheme provided by the invention, when a direction diagram test link is received, a signal transmitting and receiving device transmits a test frequency point signal to an auxiliary antenna of a calibration tower; a spherical phased array antenna receives a signal transmitted by the auxiliary antenna; a receiving beam is formed through an active digital multi-beam forming device; the signal transmitting and receiving device receives and records the signal level, and reports the signal level to automation test software of an automation test device; the automation test software of the automation test device controls the active digital multi-beam forming device to form a transmitting and receiving beam in a certain direction and acquire the signal level of the transmitting and receiving beam; two-dimensional electric scanning is carried out on the whole airspace; and three-dimensional images are respectively drawn for the directional azimuth and the elevation angle of the transmitting and receiving beam, and the signal level corresponding to the direction, so as to acquire a transmitting and receiving three-dimensional direction diagram of the antenna.

All airspace active multi beam spherical phased array antenna direction diagram measurement system

Field-serviceable radio frequency modules can be achieved by replacing hard-wired radio frequency (RF) feedback paths with external near-field RF probes. Notably, the near-field RF probes may allow for the RF module to be installed/re-installed on a backplane or other support structure without fowling factory calibration settings. Multiple near-field RF probes can monitor a single RF module. Additionally, a single near-field RF probe can monitor multiple RF modules.

Apparatus and method for an active antenna system with near-field radio frequency probes

Multiple radio frequency (RF) modules can be arranged in a multi-sector configuration. Each RF modules may have a wedge-like shape such that the RF modules may be adjacently affixed to one another in spherical cluster, thereby providing multi-sector coverage while maintaining a relatively compact active antenna installation. Additionally, multiple clusters of RF modules can be arranged in an array to provide beamforming and/or other advances antenna functionality.

Apparatus and Method for Modular Multi-Sector Active Antenna System

The invention provides methods and devices for testing downlink and uplink wireless indexes of an active antenna system. The method for testing the downlink wireless index is carried out in a wave-absorbing dark room or a signal non-interference space and comprises the following steps of: acquiring calibration parameters of the wave-absorbing dark room or the signal non-interference space; configuring the active antenna system to transmit a wireless wave beam to a receiving antenna, wherein the wireless wave beam is triggered and generated by a base-band signal from a base-band processing unit outside the wave-absorbing dark room or the signal non-interference space, and then transmitted to a test instrument outside the wave-absorbing dark room or the signal non-interference space through the receiving antenna; and starting the base-band processing unit and the active antenna system, and testing the wireless indexes of the adjusted active antenna system according to the calibration parameters. By adoption of the technical scheme provided by the invention, testing of various wireless indexes of the active antenna system is realized.

Methods and devices for testing downlink and uplink wireless indexes of active antenna system

The invention provides a test method for the performance parameter of an active antenna. According to the characteristic that an uplink and a downlink of the active antenna can not be reciprocal, in the invention, different platforms are designed for respectively testing the uplink and the downlink so as to accurately measure the uplink and the downlink antenna directional diagrams and the gain of the active antenna. The test method for the uplink and the downlink directional diagrams and the gain of the active antenna is a novel test method, which is provided for the active antenna and developed on the basis of a traditional passive antenna. Because no effective measuring method is designed for the uplink and the downlink directional diagrams and the gain of the active antenna at present, the method in the invention can be used for accurately measuring the uplink and the downlink directional diagrams and the gain of various active antennas through the matched design of related parts at the far end, the inner part and the near end of a microwave darkroom and the real-time record control of a control computer, thereby favorably promoting the development of the active antenna.

Test method for uplink and downlink directional diagrams and gain of active antenna

The invention discloses an integrated active antenna radiator. The integrated active antenna radiator is characterized by comprising a substrate and radiating fins which are produced on one surface of the substrate, wherein the other surface of the substrate is provided with at least one active module mounting hole; and the radiating fins are arranged corresponding to the active module mounting hole. The integrated active antenna radiator has the advantages of bringing heat dissipation effect in a limited space into effect to the greatest extent, enhancing the water-proof effect of an active antenna, greatly reducing production cost and the like.

Integrated active antenna radiator

The utility model discloses an active antenna radiator with an integrated design, which is characterized by comprising a substrate and a radiating fin formed on one surface of the substrate, wherein the other surface of the substrate is provided with at least one active module installation hole position; and the radiating fin is arranged correspondingly to the active module installation hole position. The active antenna radiator has the advantages of furthest playing the radiating effect in the limited space, improving the waterproof effect of an active antenna, greatly reducing the production cost and the like.

Da Cao

Papers

Test method for uplink and downlink directional diagrams and gain of active antenna

Integrated active antenna radiator

Active antenna radiator with integrated design