Abstract: An analog-to-digital converter (ADC) circuit includes a signal input terminal, a sample-and-hold circuit, and a successive approximation register (SAR) ADC. The sample-and-hold circuit includes an input terminal coupled to the signal input terminal. The SAR ADC includes a comparator, a first capacitive digital-to-analog converter (CDAC), and a second CDAC. The first CDAC includes a first input terminal coupled to the signal input terminal, a second input terminal coupled to an output terminal of the sample-and-hold circuit, and an output terminal coupled to a first input terminal of the comparator. The second CDAC includes a first input terminal coupled to the signal input terminal, an output terminal coupled to a second input terminal of the comparator.

Abstract: Systems, apparatuses, and methods for implementing an optimized adaptive thermal control mechanism for an integrated circuit (IC) are described. A control unit receives a digital input value which is representative of a temperature of an IC. The control unit compares the input value to at least two set points. A result of a first comparison determines whether an accumulator is incremented or decremented by a programmable gain value. A result of a second comparison determines whether the accumulator is primed with a preset ramp-up value. The preset ramp-up value is used since the accumulator can take several sensing cycles to reach the optimal control value while thermal gradients can become critical in only a few cycles. The output of the accumulator is provided to an actuator which adjusts parameter(s) to modulate the IC's temperature. The granularity and range of the accumulator matches the granularity and range of the actuator.

Abstract: A decoding device is used to securely send corresponding data gathered from multiple underground sources to multiple users. The device comprises a signal receiving port connected to multiple bandwidth filters and further connected to internet access points that are assigned to end users for secure data access. The invention facilitates allowing the signal and data being transmitted through the formation of the earth to reach end users located nearby and significant distances away from the source of the transmission. A system and method utilizing the decoding device is provided.

Abstract: An antenna apparatus includes a first medium- and high-band (MBHB) antenna, and a terminal device includes a metal middle frame and a metal frame, a slot is opened on a side of the metal middle frame, and the MBHB antenna includes a first feed point, a first primary feed, and a radiating slot constituted by the metal middle frame and the metal frame, a first end of the radiating slot is connected to the side slot of the metal middle frame and is grounded using the metal middle frame, and an opening of a second end of the radiating slot is disposed at a bottom edge of the metal frame, where the first primary feed is connected to the first feed point and is spaced from the radiating slot, and the first primary feed is orthogonal to the radiating slot.

Abstract: A novel small-sized low profile antenna device that replaces a monopole antenna is provided. The antenna device is attached to a vehicle, the vehicle has an attachment surface, and the antenna device includes plural metal surfaces provided on a plane generally orthogonal to the attachment surface, the plural metal surfaces being formed at different angles from each other. A section of the antenna device opposed to the attachment surface is open, and each of the metal surfaces is formed with at least either one of a slot antenna and a slit antenna for a vertically polarized wave.

Abstract: A dither capacitor, separate from the capacitor sampling the input signal, can be used to inject the additive dither in the switched-capacitor network of the track and hold circuit. This implementation can be referred to as a split-capacitor dither injection. The dither capacitor can be connected to a summing node of the switched-capacitor network. Using a separate capacitor allows the dither to be isolated from the capacitor that is sampling the input signal and avoids kick-back errors.

Abstract: An instrument configured to process signal data is disclosed. The instrument is operable to control and or change the sampling rate of the signal data from a first sample rate to a second sample rate different than the first sample rate.

Abstract: A buffer circuit includes a first differential signal input, a second differential signal input, a first source follower circuit, and a second source follower circuit. The first source follower circuit includes a first signal output, and a first input transistor. The first input transistor is coupled to the first differential signal input, and is configured to drive the first signal output. The second source follower circuit includes a second signal output, a second input transistor, and a cascode transistor. The second input transistor is coupled to the second differential signal input, and is configured to drive the second signal output. The cascode transistor is coupled to the second input transistor and the first signal output, and is configured to compensate for non-linearity of the second input transistor based on an output signal provided at the first signal output.

Abstract: A dual-polarized radiating element for a base station antenna includes a first dipole that extends along a first axis, the first dipole including a first dipole arm and a second dipole arm and a second dipole that extends along a second axis, the second dipole including a third dipole arm and a fourth dipole arm and the second axis being generally perpendicular to the first axis, where each of the first through fourth dipole arms has first and second spaced-apart conductive segments that together form a generally oval shape.

Abstract: Example slot antennas for electronic user device and related methods are disclosed herein. An example electronic user device including at least one of a lid or a base. The at least one of the lid or the base have a first surface and a second surface spaced apart from the second surface. The example electronic user device includes an antenna including a first aperture in the first surface and a second aperture in the second surface. The example user device includes a first cover at least partially disposed in the first aperture and a second cover at least partially disposed in the second aperture.

Abstract: In one aspect, an analog-to-digital converter circuit includes a transimpedance amplifier including a feedback capacitor electrically connected between an inverting or a non-inverting input of the transimpedance amplifier and an output of the transimpedance amplifier. The circuit includes an hourglass switch electrically connected on a first side to a first input and a second input, and electrically connected on a second side to the non-inverting input and the inverting input. A fine input current to the transimpedance amplifier is received at the first and second inputs. In a first mode, the hourglass switch electrically connects the first input to the non-inverting input and the second input to the inverting input, and in a second mode, the hourglass switch electrically connects the second input to the non-inverting input and the first input to the inverting input.

Abstract: An antenna device and a mobile terminal are provided. The antenna device is applied to the mobile terminal. The mobile terminal includes a middle frame and a display screen component mounted on the middle frame. The antenna device includes at least one antenna body and an excitation circuit. The antenna body is formed on the display screen component and is communicatively connected to the excitation circuit.

Abstract: An information handling system to wirelessly transmit and receive data may include a base chassis including a processor, a memory, and a wireless adapater; a metal C-cover of the base chassis to house a speaker grill, the speaker grill covering a speaker to emit audio waves; the speaker grill formed within the C-cover, the speaker grill including a slot formed around a portion of a perimeter of the speaker grill that physically separates the portion of the speaker grill as a peninsula in the C-cover; a millimeter wave antenna element coupled to a back side of the speaker grill; and a sub-6 GHz antenna element to transmit via the slot formed around the perimeter of the speaker grill; wherein the speaker grill has a mesh pattern of grill openings sized to be transparent to millimeter wave frequencies emitted by the millimeter wave antenna element.

Abstract: A circuit includes a transconductance stage having first and second outputs. The circuit also includes a comparator having first and second inputs. The first input is coupled to the first output, and the second input is coupled to the second output. The comparator includes first through fifth transistors and a pair of cross-coupled transistors. The pair of cross-coupled transistors is coupled to the second current terminals of the first and second transistors. The second current terminal of the third transistor is coupled to the second current terminal of the first transistor, and the first current terminals of the first, second, and third transistors are coupled together. The second current terminals of the fourth and fifth transistors are coupled together and to the control input of the third transistor.

Abstract: Example embodiments relate to 3D phased array-antenna systems and devices. A system may include a 3D structure with its center located at an origin of a reference coordinate system that includes an X-axis, a Y-axis, and a Z-axis extending from the origin of the reference coordinate system. The system may also include antenna arrays that have antenna elements configured to operate via electronic steering. The antenna arrays can be coupled to the 3D structure such that electronically steering antenna elements of the antenna arrays enables the antenna elements to transmit and receive electromagnetic signals simultaneously in numerous directions relative to the X-axis, the Y-axis, and the Z-axis of the reference coordinate system. The system may be used in various applications, including data transmission and reception, radar, and broadband signaling.

Abstract: A base station antenna includes a remote electronic tilt (“RET”) actuator, a phase shifter having a moveable element and a mechanical linkage extending between the RET actuator and the phase shifter. The mechanical linkage includes a RET rod. An adjustable RET rod support includes a base member and an adjustable member, the adjustable member has a RET rod holder and is movably mounted to the base member.

Abstract: The present invention provides an arch structure for multi-band base station antenna, the arch structure comprises two interface units for connecting with the side edge of a reflector, and a plurality of snap-fits for fixing with the bottom of the reflector, wherein at least two snap-fits in the plurality of snap-fits are not arranged on a projection mid-axis of the arch structure. According to the arch structure of the present invention, it can effectively avoid the interference between the arch structure and the dipole or dipole isolation wall, and enhance the stability of arch structure, so that the width of the arch structure can be reduced and the manufacturing cost can be saved.

Abstract: Embodiments of the present invention provides an antenna and an antenna system. The antenna includes a body member, a head member integrally connected to a first edge of the body member, wherein the head member forms a fold having a first angle towards the front face of the body member, and a first arm member and a second arm member, wherein the first arm member and the second arm member are integrally connected to the body member corresponding to the second edge and the third edge of the body member, and wherein the set of arm members each form a fold having a second angle towards the front face of the body member.

Abstract: The invention provides a signal processing system, for transferring analog signals from a probe to a remote processing unit. The system comprises a first ASIC at a probe, which is adapted to receive an analog probe signal. The first ASIC comprises an asynchronous sigma-delta modulator, wherein the asynchronous sigma-delta modulator is adapted to: receive the analog probe signal; and output a binary bit-stream. The system further comprises a second ASIC at the remote processing unit, adapted to receive the binary bit-stream. The asynchronous may further include a time gain function circuit, the first ASIC may further comprise a multiplexer, the second ASIC may further comprise a time-to-digital converter. The time to digital converter may be a pipelined time-to-digital converter.

Abstract: An apparatus for reducing or removing a direct current (DC) offset voltage from one or more analog signals is disclosed. An analog signal may be received by an integrator. The integrator may integrate the analog signal to determine a DC offset error signal. The apparatus may integrate, invert, and amplify the DC offset error signal to provide an analog correction signal. The analog correction signal may be inverted and subtracted from the analog signal. In some implementations, the apparatus may include multiple, independent circuits to reduce or remove DC offset voltages from differential signals.