3.5GHz Bandpass filter for WiMAX

Any one knows where to find the inexpensive 3.5GHz BPF for WiMAX receiver? I found a lot of 2.4GHz BPF (small SMT type) for 802.11b/g WLAN applications. and it is very cheap. Is 3.5GHz verion available? or we have to design one ourself?

Hi,

Go in-house design if you'll not jeopardize your project, you can check the link below for commercial BPF.

http://w3.imcsd.com/whats_new.htm

Go to this web site.
www.cirocomm.com.tw
You will find it.