FLAT MICROWAVE ANTENNA

• Main Authors: PESHLOV, VESSELIN NIKOLOV, TRAYKOV, ROSSEN NIKOLOV
• Format: Patent
• Language: English; French; German
• Published: 05.12.2007
• Subjects: ANTENNAS, i.e. RADIO AERIALS; BASIC ELECTRIC ELEMENTS; ELECTRICITY

An antenna has stacked grounded metal plates with openings ( 1, 2, 3 ) and antenna layers ( 4, 5 ) with feed lines ( 4 B, 5 B), situated between grounded metal plates. The openings in the grounded metal plates are arranged as matrix of columns and rows. The ends of the feed lines ( 4 D, 5 D) are aligned with the plate's openings ( 1 A) in order to form radiating elements. The plate ( 7 ) is placed below the bottom grounded plate ( 3 ). The three-plate stack is arranged as two antenna packages (Ap 1 and Ap 2 ). These packages include also a layer ( 8 ) comprising active devises for initial amplification of the received signal, which are connected to the groups of radiating elements ( 4 D, 5 D, 1 A) through coaxial transitions ( 13 ). As well as a combiner block ( 9 ) is connected to the active layer ( 8 ). The antenna layers ( 4, 5 ) are arranged in subarrays and the antenna output is connected by a transition ( 12 ) to a standard twin Low Noise Block.