An antenna device for short-range applications, in particular RFID applications, comprising - an elongated bipolar coaxial conductor structure with an internal conductor and a sheath conductor surrounding it coaxially, - an antenna signal connection at a first end of the coaxial conductor structure , which is formed by a connection contact on the internal conductor and a connection contact on the sheath conductor , for feeding in an antenna transmission signal or feeding out an antenna reception signal, respectively, a terminating impedance (Zterm) at a second end of the coaxial conductor structure , which is formed by a two-pole (Z) connected to a connection contact on the internal conductor and a connection contact on the sheath conductor , wherein the two-pole (Z) comprises at least one capacitance (C) and/or at least one inductance (L), characterized in that the antenna device is designed such that - in a transmission case, an HF alternating current generated by the antenna transmission signal and propagating via the internal conductor and reaching the second end of the coaxial conductor structure is coupled with the outside of the sheath conductor at the second end of the coaxial conductor structure by means of the terminating impedance (Zterm) in order to generate an HF alternating current that originates from the second end of the coaxial conductor structure and propagates via the sheath conductor and flows on the outside of the sheath conductor , and - in a reception case, an HF alternating current generated by the antenna reception signal and propagating via the sheath conductor and flowing on the outside of the sheath conductor and reaching the second end of the coaxial conductor structure is coupled with the internal conductor at the second end of the coaxial conductor structure by means of the terminating impedance (Zterm) in order to generate an HF alternating current that originates from the second end of the coaxial conductor structure and propagates via the internal conductor . - an elongated bipolar coaxial conductor structure with an internal conductor and a sheath conductor surrounding it coaxially, - an antenna signal connection at a first end of the coaxial conductor structure , which is formed by a connection contact on the internal conductor and a connection contact on the sheath conductor , for feeding in an antenna transmission signal or feeding out an antenna reception signal, respectively, a terminating impedance (Zterm) at a second end of the coaxial conductor structure , which is formed by a two-pole (Z) connected to a connection contact on the internal conductor and a connection contact on the sheath conductor , wherein the two-pole (Z) comprises at least one capacitance (C) and/or at least one inductance (L), - in a transmission case, an HF alternating current generated by the antenna transmission signal and propagating via the internal conductor and reaching the second end of the coaxial conductor structure is coupled with the outside of the sheath conductor at the second end of the coaxial conductor structure by means of the terminating impedance (Zterm) in order to generate an HF alternating current that originates from the second end of the coaxial conductor structure and propagates via the sheath conductor and flows on the outside of the sheath conductor , and - in a reception case, an HF alternating current generated by the antenna reception signal and propagating via the sheath conductor and flowing on the outside of the sheath conductor and reaching the second end of the coaxial conductor structure is coupled with the internal conductor at the second end of the coaxial conductor structure by means of the terminating impedance (Zterm) in order to generate an HF alternating current that originates from the second end of the coaxial conductor structure and propagates via the internal conductor . <EOS>