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本帖最后由 aximpda 于 2009-6-14 11:28 编辑
这是单面8槽的
S p e c i f c a t i o n s
=========================
Centrefrequency .................................... : 2.437 GHz
Required Bandwidth ................................. : 25 MHz
Outer width of waveguide ........................... : 100.08mm
Outer height of waveguide .......................... : 47.42mm
Wallthickness of waveguide ......................... : 1.30mm
Inner width of waveguide ........................... : 97.48mm
Inner height of waveguide .......................... : 44.82mm
Width-/heightratio (inner) ......................... : 2.17
Number of Slots .................................... : 8
Slot-Type .......................................... : Single slots
E V A L U A T I O N
===================
Minimumlength of Antenna ........................... : 717.0 mm
Bandwidth of Antenna (VSWR=2 at WG/Coax-Adapt.) ca.: 152 MHz
Waveguide wavelength/2 .............. (Slot-Spacing) : 79.38mm
Waveguide wavelength/4 .......... (Slot-Short-Dist.) : 39.69mm
Waveguide wavelength/8 ..... (WG/Coax-Adapter Dist.) : 19.84mm
Lambda wg/Lambda 0 ................................. : 1.29
Offset from centre line X .......................... : 12.89mm
Corrected Slotlength (with all Corrections) ........ : 56.97mm
Slotwidth ca. ...................................... : 5.2 mm +/- 30%
Gain related to Isotropradiator ca. ................ : 15.1 dBi
Gain related to Dipol ca. .......................... : 13.0 dBd
3dB-Beamwidth vertical ca. ......................... : 9.8 Grad
Diff.(Width) rel. Target-Scaling 172mm*1.27GHz/f : 8.8 %
Diff. (width/height) to Target-scaling (ca.4/1) ... : -46.9 %
!!Warning!!
Differences in the Validityrange of the equations !
Good accuracy only up to ca. +/- 15%. If more, Slotcomputations
are less accurat, this means f.i. higher VSWR : Use Tuner! |
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