Outdoor Filters Pass WiFi Signals

Nov. 19, 2009
A line of cavity bandpass filters from Anatech Microwave Co. has been developed for outdoor use in 2.4-GHz WiFi systems. The compact filters measure just 108 x 56 x 21 mm and are supplied with female Type N connectors. The typical insertion loss is less ...

A line of cavity bandpass filters from Anatech Microwave Co. has been developed for outdoor use in 2.4-GHz WiFi systems. The compact filters measure just 108 x 56 x 21 mm and are supplied with female Type N connectors. The typical insertion loss is less than 3 dB across a 22-MHz passband, with better than 15-dB return loss. The filters provide more than 60-dB out-of-band rejection and feature amplitude ripple of less than 0.25 dB across the passband. Harmonic rejection is more than 90 dB. The miniature WiFi filters can handle power levels to 50 W. They are rated for operating temperatures from -40 to +85 deg. C.

Page Title

A line of cavity bandpass filters from Anatech Microwave Co. has been developed for outdoor use in 2.4-GHz WiFi systems. The compact filters measure just 108 x 56 x 21 mm and are supplied with female Type N connectors. The typical insertion loss is less than 3 dB across a 22-MHz passband, with better than 15-dB return loss. The filters provide more than 60-dB out-of-band rejection and feature amplitude ripple of less than 0.25 dB across the passband. Harmonic rejection is more than 90 dB. The miniature WiFi filters can handle power levels to 50 W. They are rated for operating temperatures from -40 to +85oC.

Page Title

A line of cavity bandpass filters from Anatech Microwave Co. has been developed for outdoor use in 2.4-GHz WiFi systems. The compact filters measure just 108 x 56 x 21 mm and are supplied with female Type N connectors. The typical insertion loss is less than 3 dB across a 22-MHz passband, with better than 15-dB return loss. The filters provide more than 60-dB out-of-band rejection and feature amplitude ripple of less than 0.25 dB across the passband. Harmonic rejection is more than 90 dB. The miniature WiFi filters can handle power levels to 50 W. They are rated for operating temperatures from -40 to +85oC.

About the Author

Jack Browne | Technical Contributor

Jack Browne, Technical Contributor, has worked in technical publishing for over 30 years. He managed the content and production of three technical journals while at the American Institute of Physics, including Medical Physics and the Journal of Vacuum Science & Technology. He has been a Publisher and Editor for Penton Media, started the firm’s Wireless Symposium & Exhibition trade show in 1993, and currently serves as Technical Contributor for that company's Microwaves & RF magazine. Browne, who holds a BS in Mathematics from City College of New York and BA degrees in English and Philosophy from Fordham University, is a member of the IEEE.

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