Antenna module and dual-band antenna apparatus

A dual-band antenna apparatus comprising:

• a first feed line having a first end electrically connected to an integrated circuit (IC);
• a second feed line having a first end electrically connected to the IC;
• a first pole electrically connected to a second end of the first feed line and configured to transmit or receive a radio frequency (RF) signal;
• a second pole electrically connected to a second end of the second feed line and configured to transmit or receive the RF signal;
• a first ground member spaced apart from the first feed line and the second feed line in a first direction;
• and
• a second ground member spaced apart from the first feed line and the second feed line in a second direction opposite to the first direction,
• wherein each of the first ground member and the second ground member has a width greater than a distance between the first feed line and the second feed line, and less than a total dipole length of the first pole and the second pole, and
• the first pole and the second pole have an intrinsic frequency band of a dipole, and an expanded frequency band different from the intrinsic frequency band determined by the width of the first ground member and the width of the second ground member.

An antenna module comprising:

• a connection member comprising wiring layers;
• a feed line connected to a wire in a wiring layer of the connection member;
• a first antenna member connected to the feed line and configured to either one or both of transmit a first radio frequency (RF) signal and receive a second RF signal;
• and
• a first ground member connected to a wiring layer of the connection member, the first ground member being spaced apart from the feed line, and disposed between the wiring layer to which the first ground member is connected and the first antenna member.

An antenna module comprising:

• first antenna members disposed in a central portion of the antenna module, the first antenna members facing in a first direction;
• first antenna apparatuses disposed along a first section of a periphery of the antenna module, each of the first antenna apparatuses comprising:
• a first feed line extending toward the first section of the periphery of the antenna module;
• a second antenna member connected to the first feed line and extending substantially parallel to the first section of the periphery of the antenna module, the second antenna member facing in a second direction different from the first direction;
• and
• a first ground member spaced apart from the first feed line and extending toward the first section of the periphery of the antenna module;