Dual polarized cross bow tie dipole antenna having...

H - Electricity – 01 – Q

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

H01Q 9/26 (2006.01) H01Q 1/24 (2006.01) H01Q 1/52 (2006.01) H01Q 21/16 (2006.01) H01Q 21/24 (2006.01) H01Q 21/26 (2006.01)

Patent

CA 2240114

A dual polarization antenna for transmitting/receiving polarized radio frequency signals includes a reflector plate that reflects the polarized radio frequency signals and one or more dipole assemblies. Each dipole assembly has two cross bow tie dipoles having radiating arms for transmitting/receiving the polarized radio frequency energy signals at two polarizations, and having U-shaped air-filled transmission feedlines for supporting respective radiating arms and providing the radio frequency signals between the reflector plate and the respective radiating arms. Each U-shaped air-filled transmission feedline includes two legs and respective feed rods arranged in respective legs. Each leg has a rectangular shape with three sides for isolating undesirable radio frequency energy. The radiating arms are triangularly-shaped and have notches dimensioned for minimizing radiation pattern distortion due to undesirable radio frequency coupling between the two cross bow tie dipoles. The dual polarization antenna also has an RF isolation device for coupling RF energy back in a proper phase and magnitude to cancel the undesirable RF energy of the respective opposite polarization. The RF isolation device includes an isolation tree or bar, isolation rails, small thin isolation rods or wires arranged in relation to the dipole assembly, or an isolation strip between positive and negative arms of the cross bow tie dipoles; or a combination of one or more of the above.

L'invention est une antenne à double polarisation utilisé pour émettre/recevoir des signaux radiofréquence polarisés qui comporte une plaque réfléchissante servant à réfléchir des signaux radiofréquence polarisés et un ou plusieurs ensembles dipolaires. Chaque ensemble dipolaire comprend deux dipôles papillon comportant des bras qui sont utilisés pour émettre/recevoir des signaux radiofréquence ayant deux polarisations, ainsi que des lignes d'alimentation pneumatiques en U qui supportent ces bras et qui transmettent les signaux radiofréquence entre la plaque réfléchissante et les bras. Chacune de ces lignes d'alimentation est dotée de deux pattes contenant chacune une tige d'alimentation. Ces pattes sont de forme rectangulaire, trois de leurs faces latérales servant à bloquer les signaux radiofréquence indésirables. Les bras sont de forme triangulaire et ont des encoches dimensionnées de façon à minimiser la distorsion du diagramme de rayonnement due au couplage radiofréquence indésirable entre les deux dipôles papillon. L'antenne à double polarisation de l'invention est également dotée d'un dispositif d'isolement RF qui injecte un signal RF de phase et d'amplitude appropriées pour annuler un signal RF indésirable de polarisation opposée. Ce dispositif d'isolement RF comprend un branchement ou un barreau d'isolement, des conducteurs d'isolement, de petites tiges ou des fils d'isolement montés au voisinage du dipôle, ou une bande d'isolement placée entre les bras positifs et négatifs des dipôles papillon, ou une combinaison de ces divers éléments.

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

Dual polarized cross bow tie dipole antenna having... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Dual polarized cross bow tie dipole antenna having..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dual polarized cross bow tie dipole antenna having... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1682171

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.