Dielectric antenna
AssigneeMurata Manufacturing Co., Ltd.
InventorKiyoyasu Sakurada
Life of this patent
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Abstract
A dielectric antenna is provided which uses a compounded material and exhibits a small change in relative dielectric constant at room temperature against a load due to temperature changes. The dielectric antenna includes a dielectric block, a radiation electrode, a feeding electrode and a fixing electrode provided on the dielectric block. The dielectric block contains a crystalline thermoplastic resin, ceramic powder, and an acid-modified styrenic thermoplastic elastomer. The acid-modified styrenic thermoplastic elastomer content in the dielectric block is 3% to 20% by volume.
Claims12
A dielectric antenna comprising:
- a dielectric block;
- and
- a radiation electrode, a feeding electrode and a fixing electrode provided on the dielectric block,
- wherein the dielectric block contains:
- at least one crystalline thermoplastic resin selected from the group consisting of polypropylenes, polyethylenes, polyethylene terephthalates, polybutylene terephthalates, polyphenylene sulfides and polyacetals;
- ceramic powder;
- and
- an acid-modified styrenic thermoplastic elastomer, and
- wherein the acid-modified styrenic thermoplastic elastomer content in the dielectric block is 3% to 20% by volume.
A dielectric block for a dielectric antenna, the dielectric block comprising:
- at least one crystalline thermoplastic resin selected from the group consisting of polypropylenes, polyethylenes, polyethylene terephthalates, polybutylene terephthalates, polyphenylene sulfides and polyacetals;
- ceramic powder;
- and
- an acid-modified styrenic thermoplastic elastomer, and
- wherein the acid-modified styrenic thermoplastic elastomer content in the dielectric block is 3% to 20% by volume.
Dependencies are inferred from the claim text.