Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
KDDI Corp
Original Assignee
Kokusai Denshin Denwa KK
Mitsubishi Electric Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kokusai Denshin Denwa KK, Mitsubishi Electric CorpfiledCriticalKokusai Denshin Denwa KK
Priority to JP7454480ApriorityCriticalpatent/JPS56169902A/ja
Priority to CA000378683Aprioritypatent/CA1172354A/en
Priority to GB8116783Aprioritypatent/GB2081023B/en
Priority to US06/269,216prioritypatent/US4369448A/en
Publication of JPS56169902ApublicationCriticalpatent/JPS56169902A/ja
Publication of JPH0221165B2publicationCriticalpatent/JPH0221165B2/ja
H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
H01Q19/10—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces
H01Q19/12—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces wherein the surfaces are concave