Abstract: Technology for a diversity bi-directional repeater is disclosed. The diversity bi-directional repeater can include a first interface port, a second interface port, a 1st first-direction signal amplification and filtering path communicatively coupled between the first interface port and the second interface port, and a 1st second direction signal amplification and filtering path communicatively coupled between the first interface port and the second interface port. The diversity bi-directional repeater can further include a third interface port, a fourth interface port, a 2nd first-direction signal amplification and filtering path communicatively coupled between the third interface port and the fourth interface port, and a 2nd second direction signal amplification and filtering path communicatively coupled between the third interface port and the fourth interface port.

Abstract: A technology is described for a bi-directional amplifier remote monitoring system. A directional coupler can have a first port, a second port, and a third port. The first port can be configured to be coupled to a bi-directional amplifier first port. The second port can be configured to be coupled to a server antenna port. The third port can be configured to be coupled to a wireless modem. The directional coupler can be configured to direct a downlink signal with a selected amount of attenuation from the bi-directional amplifier first port to the wireless modem. The directional coupler can be configured to direct a modem signal with the selected amount of attenuation from the wireless modem to the bi-directional amplifier first port for communication on an uplink path of the bi-directional amplifier.

Abstract: A technology is described for feedback cancellation in a multiband booster. The repeater can comprise: a server antenna port; a donor antenna port; a first direction amplification and filtering path coupled between the server antenna port and the donor antenna port; a second direction amplification and filtering path coupled between the server antenna port and the donor antenna port; a first-direction two-antenna feedback cancellation circuit coupled between the server antenna port and the donor antenna port to reduce antenna-to-antenna feedback for a single band in a first direction between a donor antenna and a server antenna; and a second-direction two-antenna feedback cancellation circuit coupled between the server antenna port and the donor antenna port to reduce antenna-to-antenna feedback for the single band in a second direction between the donor antenna and the server antenna.

Abstract: A technology is described for feedback cancellation in a multiband booster. The repeater can comprise: a server antenna port; a donor antenna port; a first direction amplification and filtering path coupled between the server antenna port and the donor antenna port; a second direction amplification and filtering path coupled between the server antenna port and the donor antenna port; a first-direction two-antenna feedback cancellation circuit coupled between the server antenna port and the donor antenna port to reduce antenna-to-antenna feedback for a single band in a first direction between a donor antenna and a server antenna; and a second-direction two-antenna feedback cancellation circuit coupled between the server antenna port and the donor antenna port to reduce antenna-to-antenna feedback for the single band in a second direction between the donor antenna and the server antenna.

Abstract: A user device cradle can include a receiver configured to removably retain a wireless user device. One or more Radio Frequency (RF) signal couplers and one or more power couplers can be disposed in the receiver of the cradle. The one or more RF signal couplers can be configured to couple one or more RF communication signals to the wireless user device, while the one or more power couplers can be configured to couple power to the wireless user device. The coupling of power to the user device can be reduced or minimized when a downlink signal is received by a user device in the user device cradle, or when the user device cradle is in a weak signal area.

Abstract: Technology for a repeater system is disclosed. The repeater system can include a first repeater. The repeater system can include a second repeater that is communicatively coupled to the first repeater via a transmission line between the first repeater and the second repeater. The first repeater can include a controller operable to determine that a change in loss across the transmission line between the first repeater and the second repeater has occurred based on signaling between the first repeater and the second repeater.

Abstract: Technology for a repeater configured to perform variable bandwidth filtering of signals is disclosed. The repeater can include a signal path for a radio frequency (RF) signal. The signal path can include a fixed-bandwidth low pass filter (LPF) operable to perform a variable bandwidth filtering of the RF signal to produce a channelized signal. The variable bandwidth filtering at the LPF can be performed by adjusting a first variable local oscillator (LO). The signal path can include a fixed-bandwidth high pass filter (HPF) operable to perform a variable bandwidth filtering of a channelized signal output from the LPF. The variable bandwidth filtering at the HPF can be performed by adjusting a second variable LO. The first variable LO and the second variable LO can be set to create a variable bandwidth that enables the repeater to perform variable bandwidth filtering of the signals.

Abstract: Technology for a signal booster system is disclosed. The signal booster system can include a main signal booster and a plurality of inline signal boosters. The plurality of inline signal boosters can be communicatively coupled to the main signal booster via separate coaxial cables. Each inline signal booster in the plurality of inline signal boosters can be configured to set its uplink automatic gain control (AGC) based on dynamic gain information received from the main signal booster.

Abstract: A method and apparatus of combining carrier signals (110, 111) includes in a coupler (125) phase shifting signals (110, 111) by substantially 90 degrees to produce phase shifted signals (120, 121), coupling signals (110, 121) to produce a coupled signal (130) and the signals (111, 120) to produce a coupled signal (140). In phase shifters (450, 460), the coupled signals (130, 140) are independently phase shifted according to two independent frequency selective phase shifting functions (150, 160) to produce phase shifted coupled signals (170, 180) which are combined at combiner (190) to produce a combined carrier signal (199). A phase shifting attribute of functions (150, 160) is divided over predetermined frequency bands (210, 220, 230). Over the frequency bands (210) phase shift (260) leads phase shift (250) and lags over the frequency band (230) by substantially 90 degrees.

Abstract: A load limiting circuit (56) and method for limiting the output impedance seen by an amplifier (12), wherein a load limiting impedance (64), preferably a resister (94), is selectively coupled in parallel with the output impedance by a switch circuit (62), when a threshold detect circuit (60) detects the value of the output impedance (48) rising above a predetermined value. The output impedance is preferably measured by monitoring the output current through a resistor (70) connected in series with the output impedance (48).

Abstract: A power amplifier circuit (10) utilizes a step-wise variable voltage source (22) to improve amplifier (14) operating efficiency. In one preferred embodiment, an input signal to the step-wise variable voltage source is obtained by observing an operating characteristic of the amplifier. In an alternate preferred embodiment of the present invention, a characteristic of the input signal driving the amplifier stage is used to form an input signal to the step-wise variable input voltage source.

Abstract: In a hybrid matrix amplifier array (100), a configurable digital transform matrix (116) is initialize with a matrix of transform coefficients. A plurality of digital input signals (M.sub.1 -M.sub.4) are received at inputs of the configurable digital transform matrix (116). The plurality of digital input signals are transformed to produce a plurality of transform digital signals (A.sub.1 -A.sub.4) using the matrix of transform coefficients. The plurality of transform digital signals are converted to a plurality of transformed analoged signals (206) to produce a plurality of transformed analog signals. The transformed analog signals are amplified (104, 208) to produce amplified transformed signals. Finally, the amplified transformed signals are inverse transformed (102, 210) to produce output signals that correspond to a respective digital input signal (M.sub.1 -M.sub.4).