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  2. Planar transformer - Wikipedia

    en.wikipedia.org/wiki/Planar_transformer

    Planar transformers [1] are high frequency transformers used in isolated switchmode power supplies operating at high frequency. As opposed to conventional "wire-wound-on-a-bobbin" transformers, planar transformers usually contain winding turns made of thin copper sheets riveted together at the ends of turns in the case of high current windings ...

  3. Four-bar linkage - Wikipedia

    en.wikipedia.org/wiki/Four-bar_linkage

    Planar quadrilateral linkage, RRRR or 4R linkages have four rotating joints. One link of the chain is usually fixed, and is called the ground link , fixed link , or the frame . The two links connected to the frame are called the grounded links and are generally the input and output links of the system, sometimes called the input link and output ...

  4. Wikipedia : Peer review/Planar transmission line/archive1

    en.wikipedia.org/wiki/Wikipedia:Peer_review/...

    "Substrate" might be defined. "the planar format fits in well with the manufacturing methods" could become "the planar format is easy to manufacture", etc. The Modes section could be made more accessible with some diagrams showing some modes, especially if those mode are superimposed with the planar circuit geometry. Those are my first impressions.

  5. Planar transmission line - Wikipedia

    en.wikipedia.org/wiki/Planar_transmission_line

    An RF power amplifier incorporating planar circuit structures. The amplifier on the left feeds its output into a set of planar transmission line filters in the centre. The third circuit block on the right is a circulator to protect the amplifier from accidental reflections of the power back from the antenna

  6. Planar algebra - Wikipedia

    en.wikipedia.org/wiki/Planar_algebra

    A planar algebra is a representation of the planar operad; more precisely, it is a family of vector spaces (,), called -box spaces, on which acts the planar operad, i.e. for any tangle (with one output disk and input disks with and , …, intervals respectively) there is a multilinear map

  7. Graphyne - Wikipedia

    en.wikipedia.org/wiki/Graphyne

    Graphyne is graphyne-1; graphdiyne is graphyne-2. Graphyne is an allotrope of carbon. Although it has been studied in theoretical models, it is very difficult to synthesize and only small amounts of uncertain purity have been created. Its structure is one-atom-thick planar sheets of sp and sp 2-bonded carbon atoms

  8. Magnepan - Wikipedia

    en.wikipedia.org/wiki/Magnepan

    All Magnepan speakers are based on flexible ferrite magnet strips (like refrigerator magnets), 0.060" (1.5 mm) thick, typically cut to either 1/4" (6 mm) wide (mid-bass) or 1/8" (3 mm) wide (tweeters) and more or less the length of the speaker. The magnets are glued to a piece of custom perforated 20-gauge (1 mm) steel sheet. The steel supports ...

  9. List of planar symmetry groups - Wikipedia

    en.wikipedia.org/wiki/List_of_planar_symmetry_groups

    The 17 wallpaper groups, with finite fundamental domains, are given by International notation, orbifold notation, and Coxeter notation, classified by the 5 Bravais lattices in the plane: square, oblique (parallelogrammatic), hexagonal (equilateral triangular), rectangular (centered rhombic), and rhombic (centered rectangular).