Patent ID: 8232929

Claim:
A microwave antenna for wireless interconnection of remote sensors, remote actuators and a central control unit of an automated installation, the microwave antenna being designed for transmitting or receiving radio signals having a defined wavelength and the antenna comprising: a first printed circuit board having a front face and a rear face; a first rectangular conductor track arranged about half on the front face and about half on the rear face, said first conductor track forming a first conductor loop having a first end on the front face and a second end on the rear face; a second printed circuit board transversely attached to the first printed circuit board; a second rectangular conductor track arranged on the second circuit board and forming a second conductor loop having a third end and a fourth end; a coaxial connector secured to the first printed circuit board, the coaxial connector comprising an inner conductor and an outer conductor; a solder connection conductively connecting the first end and the third end; a bypass line having a length corresponding to approximately one quarter of the wavelength, the bypass line conductively connecting the second end and the fourth end; and a front conductor track on the front face and a rear-face conductor track on the rear face, wherein the front conductor track is configured to conductively connect the outer conductor and the first end, and wherein the rear-face conductor track is configured to conductively connect the inner conductor and the second end.