Astro React Islands • Real-Time Client-Side Computation
Interactive RF & Microwave Engineering Calculators
Interactive design utilities built directly into the site for rapid PCB transmission line synthesis, resonator sizing, and RF link margin analysis.
Article Equations • Hammerstad & Jensen
Microstrip Width (w) & Guided Wavelength (λg) Calculator
Corrected Width (w)
2.21 mm
86.9 mil • Δw = 0.0632 mm
Effective εeff
2.066
w/h = 2.822
Guided λg
41.38 mm
λ₀ = 59.36 mm
λg / 2 Hairpin Resonator
20.69 mm
180° Half-Wave
λg / 4 Stub Length
10.35 mm
90° Quarter-Wave
Electrical Phase (θ)
180.0°
for L = 20.69 mm
Step-by-Step Formula Breakdown (Matches Article Equations)
Step 1 (A): 1.2295
Step 2 (B): 7.4169
(w/h)A: 2.822
(w/h)B: 2.801
Δw: +0.0632 mm
w = (w/h + Δw/h)·h: 2.21 mm
Friis Transmission & Thermal Noise Cascade
RF & Satellite Link Budget Calculator
Robust Link Margin: +26.92 dB
EIRP
40.5 dBm
(11.22 W)
Free-Space Path Loss
-123.6 dB
d = 15 km @ 2.4 GHz
Received Power (Prx)
-73.6 dBm
C/N₀ = 96.9 dB-Hz
Thermal Noise Floor
-110.5 dBm
Sens = -100.5 dBm
Carrier-to-Noise Ratio (SNR)36.92 dB
Noise Floor (-111 dBm)Req Threshold (-101 dBm)P_rx (-74 dBm)