This article proposes a multi-diode-based wide-input power range rectifier for harvesting ambient radio frequency (RF) energy from 915 MHz ultra-high frequency (UHF). L-match series and parallel topology have been designed to not only boost the received input power but also to produce a highly efficient network to hold a broad input power range. A quality factor based parasitic aware impedance transformation technique are introduced to minimize the rectifier circuit design complexity. This paper demonstrates theoretically and practically that a parallel network is more effective than a series network due to greater harmonic suppression results in an improvement of 3 to 8 percent efficiency throughout a power range of 26 dBm to 12 dBm at a desired frequency. The design utilizes Multi diode (SMS7630, HSMS2850, and HSMS2862) approach to achieve higher efficiency over a wide input power range. From the measurements, the proposed series L match achieves peak power conversion efficiency of 75% at 4 dBm with 35 dB of wide input power range from  23 dBm to 12 dBm with > 20% respectively whereas the proposed parallel L match achieves peak power conversion efficiency of 79% at 4 dBm with 38 dB of wide input power range from  26 dBm to 12 dBm with > 20% in an area of 1:8 X 2 cm 2 respectively.