Abstract: A charcoal article for use of a hookah tobacco pipe is provided. The article comprises a body extending between a top and bottom portions. Plurality of legs extends outwardly from a base surface disposed between the top and bottom portions. The legs are separated from each other by channels, and a recess is provided extending inwardly within the body from the base surface. An inner chamber is defined within the body by the walls of the legs and walls of the recess. The legs are configured for placement on a foil, having at least one perforation, covering a bowl with a smoking matter. Upon positioning of the article on the foil the heating chamber is positioned to coincide with or situated at the perforation within the foil.

Abstract: A terahertz imager includes an array of pixel circuits. Each pixel circuit has an antenna and a detector. The detector is coupled to differential output terminals of the antenna. A frequency oscillator is configured to generate a frequency signal on an output line. The output line is coupled to an input terminal of the antenna of at least one of the pixel circuits.

Abstract: A charcoal article for use of a hookah tobacco pipe is provided. The article comprises a body extending between a top and bottom portions. Plurality of legs extends outwardly from a base surface disposed between the top and bottom portions. The legs are separated from each other by channels, and a recess is provided extending inwardly within the body from the base surface. An inner chamber is defined within the body by the walls of the legs and walls of the recess. The legs are configured for placement on a foil, having at least one perforation, covering a bowl with a smoking matter. Upon positioning of the article on the foil the heating chamber is positioned to coincide with or situated at the perforation within the foil.

Abstract: A terahertz imager includes an array of pixel circuits. Each pixel circuit has an antenna and a detector. The detector is coupled to differential output terminals of the antenna. A frequency oscillator is configured to generate a frequency signal on an output line. The output line is coupled to an input terminal of the antenna of at least one of the pixel circuits.

Abstract: A terahertz imager includes an array of pixel circuits. Each pixel circuit has an antenna and a detector. The detector is coupled to differential output terminals of the antenna. A frequency oscillator is configured to generate a frequency signal on an output line. The output line is coupled to an input terminal of the antenna of at least one of the pixel circuits.

Abstract: A frequency oscillator includes a ring oscillator having N inverters coupled in series, where N is an odd integer equal to three or more. A first filter is coupled between an output node of a first of the inverters and an output line of the frequency oscillator. A second filter is coupled between an output node of a second of the inverters and the output line of the frequency oscillator.

Abstract: A pixel circuit may include a detection circuit having first and second transistors coupled in series between differential output nodes of an antenna. The antenna may be configured to be sensitive to terahertz radiation. The pixel circuit may also include a capacitor coupled to an intermediate node between the first and second transistors, and control circuitry coupled to control nodes of the first and second transistors. The control circuitry may be configured for selectively applying to the control nodes a gate biasing voltage for biasing the control nodes of the first and second transistors during a detection phase of the pixel circuit, and/or a reset voltage for resetting a voltage stored by the capacitor.

Abstract: A frequency oscillator includes a ring oscillator having N inverters coupled in series, where N is an odd integer equal to three or more. A first filter is coupled between an output node of a first of the inverters and an output line of the frequency oscillator. A second filter is coupled between an output node of a second of the inverters and the output line of the frequency oscillator.

Abstract: A terahertz imager includes an array of pixel circuits. Each pixel circuit has an antenna and a detector. The detector is coupled to differential output terminals of the antenna. A frequency oscillator is configured to generate a frequency signal on an output line. The output line is coupled to an input terminal of the antenna of at least one of the pixel circuits.

Abstract: Planar antenna device (100) aimed to be integrated onto a common substrate (30) preferably for millimeter wave applications. The antenna device (100) comprises a reflector frame (10) with at least partially metallised sidewalls (12) and a lateral opening (14) for the feedpoint (24) of a mode conversion element (20). The mode conversion element (20) is mounted on a support structure (13) provided by said reflector frame (10). The feedpoint (24) enables the mode conversion element (20) to be connected to other components. An adaptor with a lower portion designed to be connectable to the upper horizontal opening (11) of the antenna device (100) may be used to accommodate various testing and tuning equipment.

Abstract: An apparatus is described incorporating an interposer having a cavity for a portion of an antenna structure, having conductor through vias, a top Si part having interconnection wiring and having pads for electrically mounting an integrated circuit chip thereon, wherein the top Si part mates with the interposer electrically and mechanically. The interposer and top Si part may be scaled to provide an array of functional units. The invention overcomes the problem of combining a high efficient antenna with integrated circuit chips in a Si package with signal frequencies from 1 to 100 GHz and the problem of shielding components proximate to the antenna and reduces strain arising from mismatching of TCEs.

Abstract: An apparatus is described incorporating an interposer having a cavity for a portion of an antenna structure, having conductor through vias, a top Si part having interconnection wiring and having pads for electrically mounting an integrated circuit chip thereon, wherein the top Si part mates with the interposer electrically and mechanically. The interposer and top Si part may be scaled to provide an array of functional units. The invention overcomes the problem of combining a high efficient antenna with integrated circuit chips in a Si package with signal frequencies from 1 to 100 GHz and the problem of shielding components proximate to the antenna and reduces strain arising from mismatching of TCEs.

Abstract: Apparatus and methods are provided for constructing waveguide-to-transmission line transitions that provide broadband, high performance coupling of power at microwave and millimeter wave frequencies. More specifically, exemplary embodiments of the invention include wideband, low-loss and compact coplanar waveguide-to-rectangular waveguide transition structures and asymmetric coplanar stripline (or coplanar stripline)-to-rectangular waveguide transition structures that are particularly suitable for microwave and millimeter wave applications.

Abstract: An apparatus is described incorporating an interposer having a cavity for a portion of an antenna structure, having conductor through vias, a top Si part having interconnection wiring and having pads for electrically mounting an integrated circuit chip thereon, wherein the top Si part mates with the interposer electrically and mechanically. The interposer and top Si part may be scaled to provide an array of functional units. The invention overcomes the problem of combining a high efficient antenna with integrated circuit chips in a Si package with signal frequencies from 1 to 100 GHz and the problem of shielding components proximate to the antenna and reduces strain arising from mismatching of TCEs.

Abstract: Apparatus and methods are provided for packaging IC chips together with integrated antenna modules designed to provide a closed EM (electromagnetic) environment for antenna radiators, thereby allowing antennas to be designed independent from the packaging technology.

Abstract: An apparatus is described incorporating an interposer having a cavity for a portion of an antenna structure, having conductor through vias, a top Si part having interconnection wiring and having pads for electrically mounting an integrated circuit chip thereon, wherein the top Si part mates with the interposer electrically and mechanically. The interposer and top Si part may be scaled to provide an array of functional units. The invention overcomes the problem of combining a high efficient antenna with integrated circuit chips in a Si package with signal frequencies from 1 to 100 GHz and the problem of shielding components proximate to the antenna and reduces strain arising from mismatching of TCEs.

Abstract: Apparatus and methods are provided for constructing waveguide-to-transmission line transitions that provide broadband, high performance coupling of power at microwave and millimeter wave frequencies. More specifically, exemplary embodiments of the invention include wideband, low-loss and compact CPW-to-rectangular waveguide transition structures and ACPS (or CPS)-to-rectangular waveguide transition structures that are particularly suitable for microwave and millimeter wave applications.

Abstract: Apparatus and methods are provided for packaging IC chips together with integrated antenna modules designed to provide a closed EM (electromagnetic) environment for antenna radiators, thereby allowing antennas to be designed independent from the packaging technology.