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modules/meander-2.4GHz.fpd: 2.4 GHz PCB antenna

From ben-wpan, but with two additional parameters:

- orientation: left or right (measurements are only correct for right;
  fped's measurement system doesn't understand mirroring)

- PCB thickness: this determines the size of the "tail" added. We
  assume a zero-sized tail (as in TI's original design) works best
  for a 1.0 mm PCB.
This commit is contained in:
Werner Almesberger 2012-06-12 05:44:07 -03:00
parent 081a8b8402
commit c2feac59f7
3 changed files with 136 additions and 1 deletions

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@ -386,3 +386,6 @@ F: xtal-4
# http://www.abracon.com/Resonators/ABMM2.pdf
#
# Small Size 2.4 GHz PCB Antenna
# http://focus.ti.com/lit/an/swra117d/swra117d.pdf
F: meander-2.4GHz

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@ -1,5 +1,6 @@
MODULES=8_10-card bat-clip-aa-th \
fiducial mini-usb pads pads-array qfn qfp sot sot-323 ssop stdpass \
fiducial meander-2.4GHz mini-usb pads pads-array \
qfn qfp sot sot-323 ssop stdpass \
usb-a-pcb usb_a_plug_smt
.SUFFIXES: .fpd .mod

131
modules/meander-2.4GHz.fpd Normal file
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@ -0,0 +1,131 @@
/* MACHINE-GENERATED ! */
frame via {
set d = 0.2mm
__0: vec @(d/2, d/2)
__1: vec @(-d/2, -d/2)
hole . __0
}
frame antenna {
set w = 5mil
__0: vec @(d*W1/2, -D4/2)
__1: vec .(0mm, L6)
__2: vec .(d*D5, 0mm)
__3: vec .(d*W2, 0mm)
__4: vec @(-d*W1/2, D4/2)
pad "1" __0 .
pad "X" . __1
__5: vec .(-d*D1, 0mm)
__6: vec __1(-d*W1, 0mm)
__33: vec .(0mm, W2)
__34: vec .(-d*D1, D2)
line __5 . w
__7: vec __3(d*D6, 0mm)
__8: vec .(d*W2, 0mm)
__9: vec .(0mm, W2)
pad "X" __6 .
__10: vec __3(0mm, -L6)
__11: vec .(-W2, D4)
pad "2" . __10
pad "X" . __3
__12: vec __7(0mm, -L4)
__13: vec .(d*W2, 0mm)
pad "X" __7 .
__14: vec .(d*L5, 0mm)
__15: vec .(0mm, W2)
pad "X" __13 .
__18: vec .(0mm, L4)
__19: vec .(d*L2, 0mm)
__20: vec .(0mm, -W2)
pad "X" __18 .
__25: vec .(-d*W2, 0mm)
__21: vec .(0mm, -L4)
__22: vec .(d*W2, 0mm)
pad "X" __25 .
__23: vec .(d*L5, 0mm)
__16: vec __14(d*W2, 0mm)
__17: vec .(0mm, L4)
pad "X" __14 .
__24: vec __23(d*W2, 0mm)
__26: vec .(0mm, L4)
pad "X" __23 .
__27: vec __23(0mm, W2)
pad "X" __22 .
__28: vec .(0mm, L4)
__29: vec .(d*L2, 0mm)
__30: vec .(0mm, -W2)
pad "X" __28 .
__31: vec .(-d*W2, 0mm)
__32: vec __30(0mm, -L1)
pad "X" __31 .
__38: vec .(d*tail, W2)
pad "X" __32 .
__35: vec __29(d*(D3+tail), D2)
line . __34 w
__36: vec .(0mm, -(D2+W2+L6-D4))
line __35 . w
__37: vec .(-d*(W2+L5+L2+L5+L2+D3+tail), 0mm)
line __36 . w
frame via @
}
package "MEANDER-2.4GHz-$orient-$pcb"
unit mm
allow touch
table
{ L1, L2, L3, L4, L5, L6 }
{ 3.94mm, 2.7mm, 5mm, 2.64mm, 2mm, 4.9mm }
table
{ W1, W2 }
{ 0.9mm, 0.5mm }
table
{ D1, D2, D3, D4, D5, D6 }
{ 0.5mm, 0.3mm, 0.3mm, 0.5mm, 1.4mm, 1.7mm }
table
{ pcb, tail }
{ "0.8mm", 3*W2 }
{ "1.0mm", 0mm }
table
{ orient, d }
{ "right", 1 }
{ "left", -1 }
__0: vec @(0mm, 0.1mm)
frame antenna .
measx antenna.__33 >> antenna.__9 1mm
measx antenna.__18 >> antenna.__19 1mm
measx antenna.__28 >> antenna.__29 1mm
measx antenna.__29 >> antenna.__35 1mm
measx antenna.__21 >> antenna.__22 -1mm
measx antenna.__22 >> antenna.__23 -1mm
measx antenna.__23 >> antenna.__24 -1mm
measx antenna.__12 >> antenna.__13 -1mm
measx antenna.__13 >> antenna.__14 -1mm
measx antenna.__14 >> antenna.__16 -1mm
measx antenna.__1 >> antenna.__2 -0.5mm
measx antenna.__3 >> antenna.__7 -0.5mm
measx antenna.__5 >> antenna.__4
measy antenna.__33 >> antenna.__34 1mm
measy antenna.__0 >> antenna.__4 W1
measy antenna.__10 >> antenna.__11 W2
measx antenna.__4 >> antenna.__0 -D4-1mm
measx antenna.__11 >> antenna.__10 -D4-1mm
measy antenna.__6 >> antenna.__33 1mm
measx antenna.__31 >> antenna.__32 -L1-1mm
measy antenna.__8 >> antenna.__9 -1mm
measy antenna.__20 >> antenna.__19 -1mm
measy antenna.__30 >> antenna.__29 -1mm-tail
measy antenna.__21 >> antenna.__25 0.5mm
measy antenna.__12 >> antenna.__7 0.5mm
measy antenna.__32 >> antenna.__30 -1mm-tail
measx antenna.__34 >> antenna.__35 1.5mm-D2
measy antenna.__5 >> antenna.__34 1.5mm-D1
measx antenna.__32 >> antenna.__38 -1mm