Add preliminary 915MHz antenna design

4 files changed, 612 insertions, 80 deletions

diff --git a/tri-band_rfid_card/Library.pretty/Ant_915mhz.kicad_mod b/tri-band_rfid_card/Library.pretty/Ant_915mhz.kicad_mod
new file mode 100644
index 0000000..399e745
--- /dev/null
+++ b/tri-band_rfid_card/Library.pretty/Ant_915mhz.kicad_mod
@@ -0,0 +1,103 @@
+(footprint "Ant_915mhz"
+	(version 20241229)
+	(generator "pcbnew")
+	(generator_version "9.0")
+	(layer "F.Cu")
+	(property "Reference" "REF**"
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+		(uuid "346ff223-887b-4a2d-8069-53c924936a94")
+		(effects
+			(font
+				(size 1 1)
+				(thickness 0.1)
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+	(property "Value" "Ant_915mhz"
+		(at 0 7 0)
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diff --git a/tri-band_rfid_card/tri-band_rfid_card.kicad_pcb b/tri-band_rfid_card/tri-band_rfid_card.kicad_pcb
index 84e19db..32c90f6 100644
--- a/tri-band_rfid_card/tri-band_rfid_card.kicad_pcb
+++ b/tri-band_rfid_card/tri-band_rfid_card.kicad_pcb
@@ -121,14 +121,16 @@
 	(net 2 "Net-(D1-A)")
 	(net 3 "Net-(D2-K)")
 	(net 4 "Net-(D2-A)")
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+	(net 6 "unconnected-(AE1-Pad2)")
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 		(layer "F.Cu")
 		(uuid "414d5e0c-a3cb-41e2-a938-ab789913f15f")
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 		(tags "LED")
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 		(descr "Capacitor SMD 0603 (1608 Metric), square (rectangular) end terminal, IPC-7351 nominal, (Body size source: IPC-SM-782 page 76, https://www.pcb-3d.com/wordpress/wp-content/uploads/ipc-sm-782a_amendment_1_and_2.pdf), generated with kicad-footprint-generator")
 		(tags "capacitor")
 		(property "Reference" "C3"
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@@ -373,11 +375,11 @@
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@@ -19990,6 +19992,120 @@
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 		(net 2)
-		(uuid "ad178a2a-ce6c-46ee-9a86-6d2488403a3c")
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 		(layer "F.Cu")
 		(net 2)
-		(uuid "fcae0c5d-676d-4cb1-a48c-dc854c30d90e")
+		(uuid "f2cb235f-5ce5-4866-8ccd-eba7b660c40d")
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+		(at 109 100)
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 		(layers "F.Cu" "B.Cu")
@@ -20494,28 +20634,36 @@
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 		(layer "B.Cu")
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+		(start 192.199 99.940423)
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 		(layer "F.Cu")
 		(net 3)
-		(uuid "40a2423d-7560-4f76-b648-dd6fd7ebcf08")
+		(uuid "234d33a2-2f34-4285-bf12-be61ee0e54f6")
 	)
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-		(end 191 79.45)
+		(start 192.199 77.6319)
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 		(layer "F.Cu")
 		(net 3)
-		(uuid "5f2c4f3a-4b05-47c9-b641-132b6f669224")
+		(uuid "4ee36c5e-2478-43a9-9dd4-cf849c775fd0")
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+		(start 190.5671 76)
+		(end 187.55 76)
+		(width 0.2)
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+		(uuid "dacfd8dc-55e9-43fb-a5bc-7acd19decdc4")
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@@ -20526,6 +20674,14 @@
 		(uuid "e39857c2-43cb-41d6-a8cc-77b0ff9408d7")
 	)
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+		(start 191 101.139423)
+		(end 192.199 99.940423)
+		(width 0.2)
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+		(uuid "f84fb2fa-941f-4727-a8f2-083e14979ec3")
+	)
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@@ -20534,20 +20690,92 @@
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 	)
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+		(uuid "0647996d-f820-4b09-8414-6528a85ea257")
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 		(net 4)
-		(uuid "a48e9955-2ac1-41e3-b326-a0411ac0d921")
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diff --git a/tri-band_rfid_card/tri-band_rfid_card.kicad_pro b/tri-band_rfid_card/tri-band_rfid_card.kicad_pro
index d26d5af..93c1008 100644
--- a/tri-band_rfid_card/tri-band_rfid_card.kicad_pro
+++ b/tri-band_rfid_card/tri-band_rfid_card.kicad_pro
@@ -51,7 +51,13 @@
           "min_clearance": 0.5
         }
       },
-      "diff_pair_dimensions": [],
+      "diff_pair_dimensions": [
+        {
+          "gap": 0.0,
+          "via_gap": 0.0,
+          "width": 0.0
+        }
+      ],
       "drc_exclusions": [],
       "meta": {
         "version": 2
@@ -180,7 +186,9 @@
           "td_width_to_size_filter_ratio": 0.9
         }
       ],
-      "track_widths": [],
+      "track_widths": [
+        0.0
+      ],
       "tuning_pattern_settings": {
         "diff_pair_defaults": {
           "corner_radius_percentage": 80,
@@ -207,7 +215,12 @@
           "spacing": 0.6
         }
       },
-      "via_dimensions": [],
+      "via_dimensions": [
+        {
+          "diameter": 0.0,
+          "drill": 0.0
+        }
+      ],
       "zones_allow_external_fillets": false
     },
     "ipc2581": {
diff --git a/tri-band_rfid_card/tri-band_rfid_card.kicad_sch b/tri-band_rfid_card/tri-band_rfid_card.kicad_sch
index 53772c7..c633589 100644
--- a/tri-band_rfid_card/tri-band_rfid_card.kicad_sch
+++ b/tri-band_rfid_card/tri-band_rfid_card.kicad_sch
@@ -5,6 +5,124 @@
 	(uuid "37be1b74-a3ea-4cc1-84d4-69214e3d96fd")
 	(paper "A4")
 	(lib_symbols
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+			(pin_numbers
+				(hide yes)
+			)
+			(pin_names
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+				(hide yes)
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+			(in_bom yes)
+			(on_board yes)
+			(property "Reference" "AE"
+				(at 1.27 1.27 0)
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+			(property "Value" "Antenna_Dipole"
+				(at 1.27 0 0)
+				(effects
+					(font
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+			(property "Footprint" ""
+				(at 0 0 0)
+				(effects
+					(font
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+					(hide yes)
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+			(property "Datasheet" "~"
+				(at 0 0 0)
+				(effects
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+					(hide yes)
+				)
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+			(property "Description" "Dipole antenna"
+				(at 0 0 0)
+				(effects
+					(font
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+					(hide yes)
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+			(property "ki_keywords" "dipole antenna"
+				(at 0 0 0)
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+					(hide yes)
+				)
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+						(xy 0 -2.54) (xy 0 -3.81)
+					)
+					(stroke
+						(width 0.254)
+						(type default)
+					)
+					(fill
+						(type none)
+					)
+				)
+			)
+			(symbol "Antenna_Dipole_1_1"
+				(pin input line
+					(at 0 -5.08 90)
+					(length 2.54)
+					(name "~"
+						(effects
+							(font
+								(size 1.27 1.27)
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+					(number "1"
+						(effects
+							(font
+								(size 1.27 1.27)
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+						)
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+				(pin input line
+					(at 2.54 -5.08 90)
+					(length 2.54)
+					(name "~"
+						(effects
+							(font
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+					(number "2"
+						(effects
+							(font
+								(size 1.27 1.27)
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+				)
+			)
+			(embedded_fonts no)
+		)
 		(symbol "Device:C"
 			(pin_numbers
 				(hide yes)
@@ -1203,6 +1321,76 @@
 		)
 	)
 	(symbol
+		(lib_id "Device:Antenna_Dipole")
+		(at 34.29 151.13 0)
+		(unit 1)
+		(exclude_from_sim no)
+		(in_bom yes)
+		(on_board yes)
+		(dnp no)
+		(fields_autoplaced yes)
+		(uuid "bcb7c9ff-6294-40c1-aa34-4114d8e4ba09")
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+				(justify left)
+			)
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+		(property "Value" "Antenna_900MHz"
+			(at 40.64 154.9399 0)
+			(effects
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+				(justify left)
+			)
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+		(property "Footprint" "Library:Ant_915mhz"
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+		(pin "1"
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+		(pin "2"
+			(uuid "31318992-a9a8-483d-b2ba-dcdcbc974443")
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+				(path "/37be1b74-a3ea-4cc1-84d4-69214e3d96fd"
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+					(unit 1)
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+	(symbol
 		(lib_id "Device:C")
 		(at 63.5 45.72 0)
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