Meandered Inverted F Antenna Impedance question using CC2530 on a custom PCB - Other wireless technologies forum - Other wireless - TI E2E support forums
Miniaturized active stepped impedance planar inverted-F antenna using common ground - ScienceDirect
Inverted-F Antenna Design For a PCB | RF Design
ISM1020BT Pedestal CDG Karaoke System RF Exposure Info Inverted F Antenna Specification The Singing Machine .
Designing with an inverted-F 2.4 GHz PCB antenna - Electronics-Lab.com
Figure 1 from Broadband Tiny Triple Inverted-F Antenna for 5 GHz WLAN and Bluetooth Applications | Semantic Scholar