Non-radiative hybrid dielectric line transition and apparatus incorporating the same
AssigneeMurata Manufacturing Co., Ltd.
InventorsNobumasa Kitamori, Ikuo Takakuwa
Life of this patent
Estimating the term…
Abstract
A non-radiative hybrid dielectric line transition permits a line transformation between two different types of non-radiative dielectric lines to be performed in a limited space. In addition, a non-radiative dielectric line component, an antenna apparatus, and a wireless apparatus include the above line transition. In this structure, a dielectric strip is disposed between a lower conductive plate and an upper conductive plate to form each of a hyper NRD waveguide (HNRD) and a normal NRD waveguide (NNRD). Between the two waveguides, grooves whose depths gradually become shallow from the HNRD to the NNRD are formed for receiving a third non-radiative dielectric line for performing a line transformation.
Claims9
A non-radiative hybrid dielectric line transition, comprising:
- two conductive plates forming conductive planes opposed to each other approximately in parallel;
- first grooves formed in opposing positions in the two conductive plates;
- a first non-radiative dielectric line formed by a dielectric strip disposed between the first opposing grooves;
- a second non-radiative dielectric line formed by a dielectric strip disposed between the two opposing conductive plates;
- second grooves formed between the first non-radiative dielectric line and the second non-radiative dielectric line, the depths of the second grooves becoming gradually more shallow while continuing from the first grooves;
- and
- a third non-radiative dielectric line formed by a dielectric strip disposed in the second grooves to form a non-radiative hybrid dielectric line transition connecting the first non-radiative dielectric line and the second non-radiative dielectric line.
A non-radiative hybrid dielectric line transition, comprising:
- two conductive plates forming conductive planes opposed to each other approximately in parallel;
- first grooves formed in opposing positions in the two conductive plates;
- a first non-radiative dielectric line formed by a dielectric strip disposed between the first opposing grooves;
- a second non-radiative dielectric line formed by a dielectric strip disposed between the two opposing conductive plates;
- second grooves formed between the first non-radiative dielectric line and the second non-radiative dielectric line, the depths of the second grooves becoming shallower step-by-step while continuing from the first grooves;
- and
- a third non-radiative dielectric line formed by a dielectric strip disposed in the second grooves to form a non-radiative hybrid dielectric line transition connecting the first non-radiative dielectric line and the second non-radiative dielectric line.
An communication apparatus comprising:
- a non-radiative hybrid dielectric line transition, comprising:
- two conductive plates forming conductive planes opposed to each other approximately in parallel;
- first grooves formed in opposing positions in the two conductive plates;
- a first non-radiative dielectric line formed by a dielectric strip disposed between the first opposing grooves;
- a second non-radiative dielectric line formed by a dielectric strip disposed between the two opposing conductive plates;
- second grooves formed between the first non-radiative dielectric line and the second non-radiative dielectric line, the depths of the second grooves becoming gradually more shallow while continuing from the first grooves;
- and
- a third non-radiative dielectric line formed by a dielectric strip disposed in the second grooves to form a non-radiative hybrid dielectric line transition connecting the first non-radiative dielectric line and the second non-radiative dielectric line;
- further comprising an additional non-radiative dielectric line component having first, second and third non-radiative dielectric lines, said additional non-radiative dielectric line component being arranged at a predetermined distance from said first-mentioned non-radiative dielectric line component to form a directional coupler;
- said directional coupler having a mobile section with the first-mentioned non-radiative dielectric line component and a fixed section with the additional non-radiative dielectric line component extending in an electromagnetic-wave propagating direction at a location where said second non-radiative dielectric lines forming the directional coupler couple to each other;
- a fixed dielectric lens;
- and
- a primary radiator disposed in the mobile section to radiate a signal transmitted via the directional coupler to the dielectric lens and send a signal received from the dielectric lens to the directional coupler.
Dependencies are inferred from the claim text.