Dielectric waveguide comprising connected dielectric strips

A dielectric waveguide comprising:

• an electromagnetic wave propagation region comprised of first and second dielectric strips disposed along a direction of propagation of an electromagnetic wave,
• further comprising a third dielectric strip inserted in part of a connection section at which the first dielectric strip and the second dielectric strip are connected to each other, thereby forming three respective connection planes between the first and second dielectric strips the first and third dielectric strips, and the second and third dielectric strips;
• and
• wherein the distance between the three connection planes in said connection section are determined so that a wave reflected at the connection plane between the first and third dielectric strips, a wave reflected at the connection plane between the first and second dielectric strips, and a wave reflected at the connection plane between the second and third dielectric strips are superposed with a phase difference of 2π/3 from each other.

A dielectric waveguide comprising:

• an electromagnetic wave propagation region of comprised of first and second dielectric strips disposed along a direction of propagation of an electromagnetic wave,
• further comprising a third dielectric strip inserted in part of a connection section at which a first dielectric strip and a second dielectric strip are connected to each other, thereby forming respective connection planes between the first and second dielectric strips the first and third dielectric strips, and the second and third dielectric strips;
• and
• wherein the distance between the first-second dielectric strip connection plane and the first-third dielectric strip connection plane is set to ⅙ of the guide wavelength of an electromagnetic wave propagating through the first, second and third dielectric strips, and the distance between the first-second dielectric strip connection plane and the second-third dielectric strip connection plane is set to ⅙of the guide wavelength.

A dielectric waveguide comprising:

• an electromagnetic wave propagation region comprised of a first pair and an adjacent second pair of dielectric strips disposed alone a direction of propagation of an electromagnetic wave;
• said first and second pairs of dielectric strips being connected to each other at respective connection planes which are spaced apart from each other in the direction of propagation by a distance corresponding to an odd number multiple of ¼ of the guide wavelength of an electromagnetic wave propagating through the first and second pairs of dielectric strips;
• and
• a dielectric plate interposed between said first and second pairs of dielectric strips;
• wherein an edge of said dielectric plate is disposed at one of said connection planes.

A dielectric waveguide comprising:

• an electromagnetic wave propagation region comprised of a first pair and an adjacent second pair of dielectric strips disposed along a direction of propagation of an electromagnetic wave,
• said first and second pairs of dielectric strips being connected to each other at respective connection planes which are spaced apart from each other in the direction of propagation by a distance corresponding to an odd number multiple of ¼ of the guide wavelength of an electromagnetic wave propagating through the first and second pairs of dielectric strips;
• and
• a dielectric plate interposed between said first and second pairs of dielectric strips,
• wherein a portion of said first pair of dielectric strips is integral with a corresponding portion of said second pair of dielectric strips.