Systems and methods for automated mobile device testing with emulated field mobility conditions in real-time. The array of antennas could be formed in the vertical plane, to generate elevation beams, as an alternative to the horizontal array of FIG. The combined signal from the combining network is further processed by an uplink channel module , amplified by a power amplifier , and fed to the donor antenna via its associated diplexer The modem would control the M: A coax-to-twin-line balun may be implemented with a smooth transition from a microstrip line to a twin line on the same substrate as the antenna and corporate feed, resulting in a compact, low-cost antenna.
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A method for measuring an amplitude and a phase of each antenna element of a phased array antenna and antenna arrangement for carrying out the method. Wirelless signal repeating element of claim 4 wherein the at least one dipole receive antenna element is a bow-tie dipole element. The same arrangement is utilized for the antenna on the opposite face of the repeater. Thus, increasing the size of the faces of the side-to-side repeater reduces the amount of energy that each face radiates to the backward face.
This is especially useful gamming a side-side repeater.
RF circuits similar to that shown in FIG. Communication system and methods utilizing a reactively controlled directive array.
The signal repeating element of claim 1 further comprising a plurality of transmit antenna elements and a plurality of receive antenna elements and respective phase circuitry for affecting the phase of signals from each of the antenna elements. This is indicated in FIG.
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The antennas on opposite sides of the flat-panel repeater may also be mounted in planes that are not parallel to each other to reach the desired coverage areas. The dipole arrays are preferably satron as twin-line-fed dipoles with tuning stubs for impedance matching. In another embodiment, the repeater system of the present invention is used in satellite transmission applications such as digital radio.
Both allow very simple installation, by the customer. However, this approach requires that the filters, provide all of the isolation between the downlink path and uplink path of the repeater.
In fact, this angle will vary significantly from site to site. Each PIN diode is controlled via a control C or bias line ; acting as an electronic switching circuit.
Thus, one alternative is to increase the wrieless of the terminal aatron antenna, which means increasing its physical size.
Method and intelligent digital beam forming system with improved signal quality communications. Mobile household consumer device for use on e. Method and apparatus for adjusting a mode of communication in a communication network. The switched beams would continually search for the best multipath signal, and lock on; transporting this signal to the modem. Some examples include patch antennas FIG.
Transmission medium having a dielectric core comprised of plural members connected by wlreless ball and socket configuration. This embodiment works best where the structure has the dimensions of a multi-story building.
An RSW patch antenna element, is simply a patch that gwming more energy in the directed area, and not to the sides near the ground plane.
Method and apparatus for selectively-enabled diversity signaling in a radio communications system. The controller’s functions may also include monitoring of power levels at various points in the system, monitoring of the status of the devices in the system, for example for over-power, under-power, oscillation, etc.
The modulator takes the intermediate signal, and a sample of the amplified output signal, and creates a near copy of the correct inverted f t signal-f t. Receivfr Butler matrix device then generates K unique RF analog outputseach for a respective beam direction.
Appropriate feeds such as coaxial cables or other suitable feedlines and respectively run from the antennas and to an electronics enclosure located at a lower part of the towerin which the repeater-associated electronic circuitry is located, which circuitry will be further described in connection with FIG.
For two adjacent antennas, oriented in the same direction, where one is transmitting active and the other is receiving passivethe recever antenna pushes virtual electrons into space which astroj on the passive antenna. For a given size antenna element patch, dipole, etc.
US20140127989A1 – Repeaters for wireless communication systems – Google Patents
As a result, these antennas do not suffer from the deleterious effects of surface and lateral wave scattering. The battery system is inside the unit; adjacent to the RF hardware amplifiers, etc.
The combined signal from the combining network is further processed by an uplink channel moduleamplified by a power amplifierand fed to the donor antenna via its associated diplexer There are M receive gamjng antenna elements R, and N transmit band antenna elements T.