Hi all, With regard to my previous message, I have to build a microstrip antenna that has broadband characterisitcs. From some of the comments I have received, I understand that quarter-wave matching does provide a narrowband characteristic. I would like to know, what types of patterns are useful when designing a microstrip antenna (preferably smaller than 5cm x 5cm) for the IEEE802.11a range. I am currently looking into the bowtie patch, but I have no idea on how I would feed it. I have attached a picture in a separate message (named "picture of bowtie"). Any idea on what dimensions I should use? I know that arbitrary values are useless. The permittivity and the height of the substrate can be a suitable value of your choice. Any comments are welcome. Thanks in advance. Neil. ------------------------------------------------------------------ To unsubscribe from si-list: si-list-request@xxxxxxxxxxxxx with 'unsubscribe' in the Subject field or to administer your membership from a web page, go to: //www.freelists.org/webpage/si-list For help: si-list-request@xxxxxxxxxxxxx with 'help' in the Subject field List technical documents are available at: http://www.si-list.org List archives are viewable at: //www.freelists.org/archives/si-list or at our remote archives: http://groups.yahoo.com/group/si-list/messages Old (prior to June 6, 2001) list archives are viewable at: http://www.qsl.net/wb6tpu