Implantable　capacitive　intrabody　communication　is　a　wireless　communication　method　that　utilizes　capacitive　coupling　as　a　way　for　the　implants　to　communicate　between　each　other　as　well　as　with　the　devices　that　are　placed　on　the　body.　Since　there　are　several　possible　configurations,　such　as　in-body　to　on-body　(IB2OB)　communication　and　on-body　to　in-body　(OB2IB)　communication,　it　is　important　to　investigate　how　the　communication　channel　behaves　for　each　configuration.　Therefore,　in　this　paper,　a　two-layer　3D　model　of　the　upper　part　of　the　leg　between　the　knee　and　ankle　has　been　created　for　the　measurement　purposes.　The　phantom　consists　of　an　outer　layer　that　mimics　the　fat　tissue　with　a　very　low　conductivity　and　an　inner　layer　that　has　a　conductivity　like　the　muscle.　During　the　measurements,　one　pair　of　electrodes　with　an　insulated　ground　electrode　was　inserted　into　the　muscle　layer　and　connected　to　the　transmitter,　while　the　other　pair　of　the　electrodes　was　placed　on　the　phantom　and　connected　to　the　receiver　(IB2OB).　After　the　IB2OB　measurements　were　completed,　the　transmitter　and　receiver　devices　were　swapped　to　measure　the　OB2IB　scenario.　The　results　show　that　changes　in　the　configuration　lead　to　negligible　difference　in　the　measurement　results,　i.e.　the　system　is　reciprocal.　Moreover,　a　high-pass　profile　was　observed　for　the　frequency　range　from　100　kHz　to　84　MHz.