From ffec6251ad1b1b23c8872849490cd934f8ae2e0c Mon Sep 17 00:00:00 2001
From: Sarah Wilson <sarah@faemittens.dev>
Date: Wed, 6 Aug 2025 00:34:45 +1000
Subject: Add preliminary 915MHz antenna design

---
 tri-band_rfid_card/tri-band_rfid_card.kicad_sch | 188 ++++++++++++++++++++++++
 1 file changed, 188 insertions(+)

(limited to 'tri-band_rfid_card/tri-band_rfid_card.kicad_sch')

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
+		(symbol "Device:Antenna_Dipole"
+			(pin_numbers
+				(hide yes)
+			)
+			(pin_names
+				(offset 1.016)
+				(hide yes)
+			)
+			(exclude_from_sim no)
+			(in_bom yes)
+			(on_board yes)
+			(property "Reference" "AE"
+				(at 1.27 1.27 0)
+				(effects
+					(font
+						(size 1.27 1.27)
+					)
+				)
+			)
+			(property "Value" "Antenna_Dipole"
+				(at 1.27 0 0)
+				(effects
+					(font
+						(size 1.27 1.27)
+					)
+				)
+			)
+			(property "Footprint" ""
+				(at 0 0 0)
+				(effects
+					(font
+						(size 1.27 1.27)
+					)
+					(hide yes)
+				)
+			)
+			(property "Datasheet" "~"
+				(at 0 0 0)
+				(effects
+					(font
+						(size 1.27 1.27)
+					)
+					(hide yes)
+				)
+			)
+			(property "Description" "Dipole antenna"
+				(at 0 0 0)
+				(effects
+					(font
+						(size 1.27 1.27)
+					)
+					(hide yes)
+				)
+			)
+			(property "ki_keywords" "dipole antenna"
+				(at 0 0 0)
+				(effects
+					(font
+						(size 1.27 1.27)
+					)
+					(hide yes)
+				)
+			)
+			(symbol "Antenna_Dipole_0_1"
+				(polyline
+					(pts
+						(xy 2.54 -3.81) (xy 2.54 -2.54) (xy 5.08 -2.54) (xy 5.08 -1.27) (xy -2.54 -1.27) (xy -2.54 -2.54)
+						(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)
+							)
+						)
+					)
+					(number "1"
+						(effects
+							(font
+								(size 1.27 1.27)
+							)
+						)
+					)
+				)
+				(pin input line
+					(at 2.54 -5.08 90)
+					(length 2.54)
+					(name "~"
+						(effects
+							(font
+								(size 1.27 1.27)
+							)
+						)
+					)
+					(number "2"
+						(effects
+							(font
+								(size 1.27 1.27)
+							)
+						)
+					)
+				)
+			)
+			(embedded_fonts no)
+		)
 		(symbol "Device:C"
 			(pin_numbers
 				(hide yes)
@@ -1202,6 +1320,76 @@
 			)
 		)
 	)
+	(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")
+		(property "Reference" "AE1"
+			(at 40.64 152.3999 0)
+			(effects
+				(font
+					(size 1.27 1.27)
+				)
+				(justify left)
+			)
+		)
+		(property "Value" "Antenna_900MHz"
+			(at 40.64 154.9399 0)
+			(effects
+				(font
+					(size 1.27 1.27)
+				)
+				(justify left)
+			)
+		)
+		(property "Footprint" "Library:Ant_915mhz"
+			(at 34.29 151.13 0)
+			(effects
+				(font
+					(size 1.27 1.27)
+				)
+				(hide yes)
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+		(property "Datasheet" "~"
+			(at 34.29 151.13 0)
+			(effects
+				(font
+					(size 1.27 1.27)
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+				(hide yes)
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+		(property "Description" "Dipole antenna"
+			(at 34.29 151.13 0)
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+				(font
+					(size 1.27 1.27)
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+				(hide yes)
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+		(pin "1"
+			(uuid "ad984038-1a5c-4a11-b1d9-5d56200706b7")
+		)
+		(pin "2"
+			(uuid "31318992-a9a8-483d-b2ba-dcdcbc974443")
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+		(instances
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+				(path "/37be1b74-a3ea-4cc1-84d4-69214e3d96fd"
+					(reference "AE1")
+					(unit 1)
+				)
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 	(symbol
 		(lib_id "Device:C")
 		(at 63.5 45.72 0)
-- 
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