| US 7,518,462 B2 | ||
| Transmission line pair having a plurality of rotational-direction reversal structures | ||
| Hiroshi Kanno, Osaka (Japan); Kazuyuki Sakiyama, Osaka (Japan); Ushio Sangawa, Nara (Japan); and Tomoyasu Fujishima, Osaka (Japan) | ||
| Assigned to Panasonic Corporation, Osaka (Japan) | ||
| Filed on Oct. 30, 2006, as Appl. No. 11/589,099. | ||
| Application 11/589099 is a continuation of application No. PCT/JP2006/306531, filed on Mar. 29, 2006. | ||
| Claims priority of application No. 2005-097370 (JP), filed on Mar. 30, 2005. | ||
| Prior Publication US 2007/0040627 A1, Feb. 22, 2007 | ||
| Int. Cl. H01P 3/08 (2006.01) | ||
| U.S. Cl. 333—4 [333/238] | 9 Claims |
| 1. A transmission line pair comprising:
a substrate comprising a dielectric or semiconductor;
one first signal conductor which is placed on one surface of the substrate;
one second signal conductor which is placed on the one surface of the substrate; and
a grounding conductor layer which is placed on another surface of the substrate, wherein
each of the first signal conductor and the second signal conductor has a plurality of rotational-direction reversal structures,
each structure arranged so as to be electrically connected to one another in series from one end-side to the other end-side
of the substrate,
each of the plurality of rotational-directions reversal structures comprising:
a first signal conductor portion which is arranged so as to be curved toward a first rotational direction within the one surface
of the substrate; and
a second signal conductor portion which is arranged so as to be curved toward a second rotational direction opposite to the
first rotational direction within the one surface of the substrate and is placed in the one surface of the substrate so as
to be electrically connected in series to the first signal conductor, wherein
each of the plurality of the rotational-direction reversal structures has a transmission-direction.
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