1 / 4

RF front end P. Gorham UH

A N I T A. RF front end P. Gorham UH. highpass. In band, ~0.3dB over most of band, 3db at 180MHz, <-60dB 110MHz. lowpass. New spec, best of the lot at -60dB 1610 MHz (Iridium). Component sequence. Antenna --> low loss cable (LMR400 or Heliax), ~1m: expect <30K from cable & connectors

oksana
Télécharger la présentation

RF front end P. Gorham UH

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. A N I T A RF front endP. GorhamUH

  2. highpass • In band, ~0.3dB over most of band, 3db at 180MHz, <-60dB 110MHz

  3. lowpass • New spec, best of the lot at -60dB 1610 MHz (Iridium)

  4. Component sequence • Antenna --> low loss cable (LMR400 or Heliax), ~1m: • expect <30K from cable & connectors • Into noise diode -20dB coupler, ==> -0.3dB? ==> • ~30K, incl connectors • Bandpass filters: • -0.3 - -0.8 dB ==> 50K • Coupler thru SMA & minibend into LNA. LNA ==> • ~80-100K, incl. Connectors • Design requirement is therefore 200K, goal 150K.

More Related