Patent ID: 6208299
Filing Date: 2001-03-27
Classification: H01Q

Abstract:
Antenna arrangement for receiving and/or transmitting electromagnetic signals in at least two spaced-apart frequency bands including a first frequency band having a first centre frequency (f1) and a second frequency band having a second centre frequency (f2), comprisinga first set of antenna elements (A1; A11-A14) being operative in said first frequency band (f1),a second set of antenna elements (A2; A21-A28) being operative in said second frequency band (f2),a feeding network arranged for feeding signals, in said first and second frequency bands, to said first and second set of antenna elements, respectively,characterized in thatsaid antenna elements (A1; A11-A14) in said first set of antenna elements are arranged geometrically so that said first set has a first length (D1; D10) in a first direction,said antenna elements (A2; A21-A28) in said second set of antenna elements are arranged geometrically so that said second set has a second length (D2; D20) in said first direction, andsaid first and second lengths (D1, D2; D10, D20) are substantially inversely proportional to said first and second centre frequencies (f1, f2).