2012
DOI: 10.18517/ijaseit.2.1.151
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Design of LNA at 5.8GHz with Cascode and Cascaded Techniques Using T-Matching Network for Wireless Applications

Abstract: This project presents a 5.8 GHz Low Noise Amplifier (LNA) design with cascode and cascaded techniques using T-matching network applicable for IEEE 802.16 standard. The amplifier uses the FHX76LP Low Noise SuperHEMT FET. The design simulation process is done by using the Advance Design System (ADS) software. The cascode and cascaded low noise amplifier (LNA) produces a gain of 53.4dB and noise figure (NF) of 1.2dB. The input reflection (S 11) and output return loss (S 22) are-24.3dB and-23.9dB respectively. The… Show more

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“…Langkah selanjutnya adalah merancang rangkaian penyesuai impedansi untuk masing-masing tingkat penguat. Pada Gambar 2, terdapat tiga konfigurasi rangkaian penyesuai impedansi, yaitu input impedance matching network, interstage impedance matching network dan output impedance matching network [12]. Nilai-nilai yang diperoleh untuk masing masing penyesuai impedansi harus dikonversi pada nilai dimensi microstrip line melalui Persamaan 13 dan 14. karakteristik ketebalan (h) 1,016 mm, permitivitas ( r e ) 2,5, ketebalan konduktor (t) 0,036 mm dan loss tangent (tan δ) 0,0018.…”
Section: IIunclassified
“…Langkah selanjutnya adalah merancang rangkaian penyesuai impedansi untuk masing-masing tingkat penguat. Pada Gambar 2, terdapat tiga konfigurasi rangkaian penyesuai impedansi, yaitu input impedance matching network, interstage impedance matching network dan output impedance matching network [12]. Nilai-nilai yang diperoleh untuk masing masing penyesuai impedansi harus dikonversi pada nilai dimensi microstrip line melalui Persamaan 13 dan 14. karakteristik ketebalan (h) 1,016 mm, permitivitas ( r e ) 2,5, ketebalan konduktor (t) 0,036 mm dan loss tangent (tan δ) 0,0018.…”
Section: IIunclassified
“…It can simply be done using circles of constant noise figure and constant gain circles to select usable trade-off between gain and noise figure. Usually, noise figure 2-port transistor has a minimal value at the specified admittance given by the equation by equation (1), [5] and :…”
Section: Minimum Noise Figurementioning
confidence: 99%