| CPC H01P 1/182 (2013.01) [H01P 1/184 (2013.01); H01Q 1/246 (2013.01); H01Q 3/32 (2013.01); H05K 9/0081 (2013.01)] | 16 Claims |

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1. A phase shifter, comprising:
a shielding member, and an adjustable dielectric layer arranged in a shielding space formed by the shielding member, wherein
the adjustable dielectric layer comprises a line layer and a dielectric member; the line layer comprises a feed circuit and an empty slot arranged corresponding to the feed circuit and used to form an air strip line; the dielectric member is inserted into the empty slot; and a dielectric constant of the feed circuit is changed by controlling a depth of the dielectric member inserted into the empty slot;
wherein the line layer comprises a line carrying plate; the line carrying plate comprises two line setting surfaces; the line layer further comprises a first supporting plate and a second supporting plate which are respectively arranged on the two line setting surfaces; a through slot matched with a shape of the feed circuit formed on the line setting surface corresponding to the first supporting plate and/or the second supporting plate is formed in the first supporting plate and/or the second supporting plate, so that when the carrying plate is fitted to the first supporting plate and/or the second supporting plate, the feed circuit is embedded into the through slot.
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