Copyright (c) 2014-2020 Great Scott Gadgets These files are part of HackRF. This is a free hardware design; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2, or (at your option) any later version. This design is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this design; see the file COPYING. If not, write to the Free Software Foundation, Inc., 51 Franklin Street, Boston, MA 02110-1301, USA. LNA915 is a SAW filter and LNA for the 902 to 928 MHz ISM band. It is designed for in-line connection between an antenna and HackRF One and is powered by the HackRF One. hardware notes: Schematic and layout files were designed in KiCad, an open source electronic design automation package. The PCB is designed to fit the Crystek SMA-KIT-1.5MF housing. order of copper layers: Copper 1: F (front) Copper 2: In1 Copper 3: In2 Copper 4: B (back) PCB description: 4 layer PCB 0.8 mm Copper 1: 0.035 mm (1 oz) Dielectric 1-2: 0.2 mm prepreg Copper 2: 0.0175 mm (0.5 oz) Dielectric 2-3: 0.265 mm core Copper 3: 0.0175 mm (0.5 oz) Dielectric 3-4: 0.2 mm prepreg Copper 4: 0.035 mm (1 oz) 7628 prepreg with Er=4.6 double side solder mask green double side silkscreen white 7 mil minimum trace width 5 mil minimum isolation PCBs of this specification are available from JLCPCB (JLC7628 4-layer 0.8 mm stackup).