摘要:
An exemplary system and method for providing differential adjustment of the height of a multilayer substrate in localized areas for improved Q-factor performance of RF devices is disclosed as comprising inter alia: a multilayer substrate (200); an RF component (210) embedded in the substrate (200); a surface mounted component (220); and an RF shield (260) disposed next to the surface mounted component (220), wherein the height of the shield (260) does not extend substantially beyond the height of the surface mounted component (220). Disclosed features and specifications may be variously controlled, configured, adapted or otherwise optionally modified to further improve or otherwise optimize Q, RF performance and/or material characteristics. Exemplary embodiments of the present invention representatively provide for high-performance, high-quality RF devices that may be readily incorporated with existing technologies for the improvement of frequency response, device package form factors, weights and/or other manufacturing, device or material performance metrics.
摘要:
An exemplary system and method for providing differential adjustment of the height of a multilayer substrate in localized areas for improved Q-factor performance of RF devices is disclosed as comprising inter alia: a multilayer substrate (200); an RF component (210) embedded in the substrate (200); a surface mounted component (220); and an RF shield (260) disposed next to the surface mounted component (220), wherein the height of the shield (260) does not extend substantially beyond the height of the surface mounted component (220). Disclosed features and specifications may be variously controlled, configured, adapted or otherwise optionally modified to further improve or otherwise optimize Q, RF performance and/or material characteristics. Exemplary embodiments of the present invention representatively provide for high-performance, high-quality RF devices that may be readily incorporated with existing technologies for the improvement of frequency response, device package form factors, weights and/or other manufacturing, device or material performance metrics.
摘要:
An exemplary system and method for minimizing degradation effects attributed to misalignment in the production of multilayer balun devices is disclosed as comprising inter alia any combination of coupled line folding that effectively provides a degenerate or otherwise reducible representation of line segment components wherein at least about half of the line segments (by, for example, linear distance or by line volume) are substantially orthogonal to the remaining half.
摘要:
A broadband impedance matching integrated circuit apparatus comprising an alternating current ground plane, a direct current ground plane positioned proximate to the alternating current ground plane, a first conductive transmission line positioned a distance from the alternating current and direct current ground planes, a dielectric material layer with a thickness positioned on the first conductive transmission line, a second conductive transmission line positioned on the dielectric material layer wherein the first and second conductive transmission lines are electrically interconnected to behave as an electromagnetically coupled tapped autotransformer.
摘要:
A multilayer ceramic structure (30) includes a first ceramic layer (32), a second ceramic layer (34) adjacent to the first ceramic layer, and a transmission line (38) formed between the first and second ceramic layers. The transmission line includes first and second portions (44, 46) having a first width, third and fourth portions (47, 48) formed between the first and second portions and having a second width that is narrower than the first width, and a fifth portion (49) formed between the third and fourth portions. A probe (40), comprising a conductively filled via, is attached at one end to the fifth portion, the probe passing through the second ceramic layer for providing a test point (42). The structure compensates for return loss induced by the probe.
摘要:
A stripline integrated circuit apparatus comprising a first ground plane, a stripline section positioned on the first ground plane, the stripline section including N stripline regions where N is a whole number greater than or equal to one, wherein each stripline region includes a stripline sandwiched therebetween a first dielectric layer with a thickness and a second dielectric layer with a thickness where each adjacent stripline is connected in parallel, wherein each adjacent stripline region is separated by a ground plane, a second ground plane positioned on the stripline region, and wherein the plurality of stripline sections are formed and electrically connected in series. The distances between the striplines and the ground planes are adjusted to vary the input and output impedance.
摘要:
Methods and apparatus (40) of amplifying a telecommunication signal (41) are provided in accordance with the present invention. The apparatus (40) comprises an input transmission line (48) configured to receive the telecommunication signal (41), an output transmission line (50) configured to provide an amplified output of the telecommunication signal (41) and N amplifier sections (42, 44, 45, 46) having a transistor (52) connected to the input transmission line (48) and the output transmission line (50). The apparatus (40) further comprises a waveform controller (84) connected to the transistor 52 and also configured to identify a signal level of the telecommunication signal 41. The waveform controller 84 is further configured to generate an independent biasing voltage for the transistor 52 such that the at least one of the N amplifier sections (42, 44, 45, 46) is configured for active operation and non-active operation based at least in part upon an evaluation of the signal level and an output power of the apparatus is reduced without a substantial degradation in an efficiency of the apparatus.
摘要:
A distributed amplifier (40) and a method (100) of operating the distributed amplifier (40) are provided in accordance with the present invention. The distributed amplifier (40) comprises an input transmission line (48), an output transmission line (50) and N amplifier sections (42,44,46) having a transistor (52) connected to the input transmission line (48) and the output transmission line (50). The distributed amplifier (40) also comprises N independent biasing sources (82,84,86) configured to provide N independent biasing voltages for each transistor (52) of the N amplifier sections (42,44,46) for active operation, wherein the distributed amplifier (40) is configured such that when a first independent biasing voltage of said N independent biasing voltages is modified for a first transistor of a first section of the N amplifier sections, the first transistor of the first section of the N amplifier sections is configured for a non-active operation and an output power of the distributed amplifier (40) is reduced without a substantial degradation in an efficiency of the distributed amplifier (40).
摘要:
A high frequency semiconductor component (10) includes a first substrate (12) having a first surface (13) opposite a second surface (14), a first electrically conductive layer (16) supported by the first surface (13) of the first substrate (12), a second electrically conductive layer (17) supported by the second surface (14) of the first substrate (12) wherein the second electrically conductive layer (17) is electrically coupled to the first electrically conductive layer (16), a second substrate (19) having a first surface (20) and a second surface (21), a third electrically conductive layer (22) supported by the first surface (20) of the second substrate (19), and an electrically insulating layer (23) between the second and third electrically conductive layers (17, 22) wherein the second and third electrically conductive layers (17, 22) are electrically coupled together through the electrically insulating layer (23).
摘要:
A multilayer planar transmission line (10) can be fabricated as a monolithic structure with series/shunt-connected components for integration in an MMIC device. The multilayer planar transmission line (10) includes a first transmission line structure (TL1) formed by a top conductor (14) and an interlevel conductor (16) separated by an interlevel dielectric (18). This structure is formed on one planar surface of a substrate (12), and a ground plane reference (20) is formed on the opposing surface, yielding second and third transmission line structures (TL2, TL3) formed by the groundplane reference and, respectively, the interlevel conductor (16) and the top conductor (14). The interlevel dielectric layer (18) is significantly thinner than the substrate dielectric, so that the first transmission line (TL1) is tightly coupled, and substantially unaffected by parasitics between the bottom of the interlevel conductor (16) and the groundplane reference (20). In an exemplary embodiment, a monolithic multilayer planar transmission line network is configured as a Marchand-type balun (30). A top conductor (34) is configured in two continuous sections (Z1 and Z2), and an interlevel conductor (36) is configured in two separate sections (ZS1) and ZS2), separated by a balance point gap (BP). This configuration forms series transmission lines (Z1 and Z2) shunt-connected to a second pair of series transmission lines (ZS1 and ZS2). With the appropriate configuration of the top and interlevel conductors (34, 36), impedance values can be established to yield a balanced signal output at the balance point gap (BP).