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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
parent
081a8b8402
commit
c2feac59f7
@ -386,3 +386,6 @@ F: xtal-4
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# http://www.abracon.com/Resonators/ABMM2.pdf
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#
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# Small Size 2.4 GHz PCB Antenna
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# http://focus.ti.com/lit/an/swra117d/swra117d.pdf
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F: meander-2.4GHz
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@ -1,5 +1,6 @@
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MODULES=8_10-card bat-clip-aa-th \
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fiducial mini-usb pads pads-array qfn qfp sot sot-323 ssop stdpass \
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fiducial meander-2.4GHz mini-usb pads pads-array \
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qfn qfp sot sot-323 ssop stdpass \
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usb-a-pcb usb_a_plug_smt
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.SUFFIXES: .fpd .mod
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131
modules/meander-2.4GHz.fpd
Normal file
131
modules/meander-2.4GHz.fpd
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@ -0,0 +1,131 @@
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/* MACHINE-GENERATED ! */
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frame via {
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set d = 0.2mm
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__0: vec @(d/2, d/2)
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__1: vec @(-d/2, -d/2)
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hole . __0
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}
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frame antenna {
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set w = 5mil
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__0: vec @(d*W1/2, -D4/2)
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__1: vec .(0mm, L6)
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__2: vec .(d*D5, 0mm)
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__3: vec .(d*W2, 0mm)
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__4: vec @(-d*W1/2, D4/2)
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pad "1" __0 .
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pad "X" . __1
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__5: vec .(-d*D1, 0mm)
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__6: vec __1(-d*W1, 0mm)
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__33: vec .(0mm, W2)
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__34: vec .(-d*D1, D2)
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line __5 . w
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__7: vec __3(d*D6, 0mm)
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__8: vec .(d*W2, 0mm)
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__9: vec .(0mm, W2)
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pad "X" __6 .
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__10: vec __3(0mm, -L6)
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__11: vec .(-W2, D4)
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pad "2" . __10
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pad "X" . __3
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__12: vec __7(0mm, -L4)
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__13: vec .(d*W2, 0mm)
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pad "X" __7 .
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__14: vec .(d*L5, 0mm)
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__15: vec .(0mm, W2)
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pad "X" __13 .
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__18: vec .(0mm, L4)
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__19: vec .(d*L2, 0mm)
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__20: vec .(0mm, -W2)
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pad "X" __18 .
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__25: vec .(-d*W2, 0mm)
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__21: vec .(0mm, -L4)
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__22: vec .(d*W2, 0mm)
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pad "X" __25 .
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__23: vec .(d*L5, 0mm)
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__16: vec __14(d*W2, 0mm)
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__17: vec .(0mm, L4)
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pad "X" __14 .
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__24: vec __23(d*W2, 0mm)
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__26: vec .(0mm, L4)
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pad "X" __23 .
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__27: vec __23(0mm, W2)
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pad "X" __22 .
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__28: vec .(0mm, L4)
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__29: vec .(d*L2, 0mm)
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__30: vec .(0mm, -W2)
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pad "X" __28 .
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__31: vec .(-d*W2, 0mm)
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__32: vec __30(0mm, -L1)
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pad "X" __31 .
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__38: vec .(d*tail, W2)
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pad "X" __32 .
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__35: vec __29(d*(D3+tail), D2)
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line . __34 w
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__36: vec .(0mm, -(D2+W2+L6-D4))
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line __35 . w
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__37: vec .(-d*(W2+L5+L2+L5+L2+D3+tail), 0mm)
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line __36 . w
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frame via @
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}
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package "MEANDER-2.4GHz-$orient-$pcb"
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unit mm
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allow touch
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table
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{ L1, L2, L3, L4, L5, L6 }
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{ 3.94mm, 2.7mm, 5mm, 2.64mm, 2mm, 4.9mm }
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table
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{ W1, W2 }
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{ 0.9mm, 0.5mm }
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table
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{ D1, D2, D3, D4, D5, D6 }
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{ 0.5mm, 0.3mm, 0.3mm, 0.5mm, 1.4mm, 1.7mm }
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table
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{ pcb, tail }
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{ "0.8mm", 3*W2 }
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{ "1.0mm", 0mm }
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table
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{ orient, d }
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{ "right", 1 }
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{ "left", -1 }
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__0: vec @(0mm, 0.1mm)
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frame antenna .
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measx antenna.__33 >> antenna.__9 1mm
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measx antenna.__18 >> antenna.__19 1mm
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measx antenna.__28 >> antenna.__29 1mm
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measx antenna.__29 >> antenna.__35 1mm
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measx antenna.__21 >> antenna.__22 -1mm
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measx antenna.__22 >> antenna.__23 -1mm
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measx antenna.__23 >> antenna.__24 -1mm
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measx antenna.__12 >> antenna.__13 -1mm
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measx antenna.__13 >> antenna.__14 -1mm
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measx antenna.__14 >> antenna.__16 -1mm
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measx antenna.__1 >> antenna.__2 -0.5mm
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measx antenna.__3 >> antenna.__7 -0.5mm
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measx antenna.__5 >> antenna.__4
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measy antenna.__33 >> antenna.__34 1mm
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measy antenna.__0 >> antenna.__4 W1
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measy antenna.__10 >> antenna.__11 W2
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measx antenna.__4 >> antenna.__0 -D4-1mm
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measx antenna.__11 >> antenna.__10 -D4-1mm
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measy antenna.__6 >> antenna.__33 1mm
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measx antenna.__31 >> antenna.__32 -L1-1mm
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measy antenna.__8 >> antenna.__9 -1mm
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measy antenna.__20 >> antenna.__19 -1mm
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measy antenna.__30 >> antenna.__29 -1mm-tail
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measy antenna.__21 >> antenna.__25 0.5mm
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measy antenna.__12 >> antenna.__7 0.5mm
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measy antenna.__32 >> antenna.__30 -1mm-tail
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measx antenna.__34 >> antenna.__35 1.5mm-D2
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measy antenna.__5 >> antenna.__34 1.5mm-D1
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measx antenna.__32 >> antenna.__38 -1mm
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