Antenna element

An antenna element comprising:

• a top plate;
• a printed board;
• and
• a monopole that is joined with the top plate at one end and with the printed board at the other end to hold the top plate in a fixed posture toward the printed board;
• wherein the top plate is integrally formed with the monopole from a flat plate;
• wherein the top plate is symmetrical with respect to two orthogonal axes which are perpendicular to the thickness of the top plate and pass through the center of the area of the top plate;
• wherein the lengths of the axes are different from each other;
• wherein the top plate and the monopole are formed by means of bending the monopole out of the flat plate;
• wherein the monopole-bending creates a cutaway in the flat plate;
• and
• wherein the top plate is bent, along a bend axis running across the top plate, into one of a V-shape and an inverted V-shape.

An antenna element comprising:

• a top plate;
• a printed board;
• and
• a monopole that is joined with the top plate at one end and with the printed board at the other end to hold the top plate in a fixed posture toward the printed board;
• wherein the top plate is integrally formed with the monopole from a flat plate;
• wherein the top plate and the monopole are formed by means of bending the monopole out of the flat plate;
• wherein the monopole-bending creates a cutaway in the flat plate;
• wherein another cutaway is provided in the flat plate;
• wherein the top plate is symmetrical with respect to an axis which is perpendicular to the thickness of the top plate and runs longitudinally of the cutaways through the center of the area of the top plate, and substantially symmetrical with respect to an axis running through the center of the longitudinal axis at right angles thereto;
• wherein the lengths of the longitudinal axis and the axis running at right angles thereto are different from each other;
• and
• wherein the top plate is bent, along a bend axis running across the top plate, into one of a V-shape and an inverted V-shape.

An antenna element comprising:

• a top plate;
• a printed board;
• and
• a monopole that is joined with the top plate at one end and with the printed board at the other end in as to hold the top plate in a fixed posture toward the printed board;
• wherein the top plate is integrally formed with the monopole from a flat plate;
• wherein the top plate is symmetrical with respect to two orthogonal axes which are perpendicular to the thickness of the top plate and pass through the center of the area of the top plate;
• wherein the lengths of the axes are different from each other;
• wherein the top plate and the monopole are formed by means of bending the monopole out of the flat plate;
• wherein the monopole-bending creates a cutaway in the flat plate;
• wherein the cutaway is formed longitudinally or transversely of the top plate;
• and
• wherein the top plate is bent, along a bend axis running across the top plate, into one of a V-shape and an inverted V-shape.

An antenna element comprising:

• a top plate;
• a printed board;
• and
• a monopole that is joined with the top plate at one end and with the printed board at the other end to hold the top plate in a fixed posture toward the printed board;
• wherein the top plate is integrally formed with the monopole from a flat plate;
• wherein the top plate and the monopole are formed by means of bending the monopole out of the flat plate;
• wherein the monopole-bending creates a cutaway in the flat plate;
• wherein another cutaway is provided in the flat plate;
• wherein the cutaways are formed longitudinally or transversely of the top plate;
• wherein the top plate is symmetrical with respect to an axis which is perpendicular to the thickness of the top plate and runs longitudinally of the cutaways through the center of the area of the top plate, and substantially symmetrical with respect to an axis running through the center of the longitudinal axis at right angles thereto;
• wherein the lengths of the longitudinal axis and the axis running at right angles thereto are different from each other;
• and
• wherein the top plate is bent, along a bend axis running across the top plate, into one of a V-shape and an inverted V-shape.