Amazon.com: Lintratek 70dB Cell Phone Signal Booster for House CDMA 850MHz PCS 1900MHz Dual Band Mobile Signal Amplifier Repeater Directional Antenna - Boost 3G 4G Voice & Data : Cell Phones &
Application Note for Tuneable PCB Antenna (850/1900MHz)
Part 1: DIY 2.45 GHz PCB dipole antenna | by Andreas Schweizer | Medium