The present invention provides a radio frequency module including: an interposer; a plurality of antenna element groups that include first electrodes and a second electrode and are configured such that the first electrodes are aligned in line shapes in at least a first direction on a first surface of the interposer; and meta material portions that are provided at the interposer and affect electromagnetic properties of the plurality of antenna elements. The meta material portions include electromagnetic band gap structures provided by forming predetermined geometric patterns near both sides of the first electrodes along at least the first direction. The radio frequency module can thus have a reduced size and a broad band/a high gain.

Antenna test systems and methods are disclosed. An antenna test system as disclosed herein can include an X-Y isolation structure that defines a plurality of unit cells, a plurality of coupling elements, with at least one coupling element within each unit cell, and a Z isolation structure. The size and general configuration of the unit cells are selected to allow the individual antenna elements of an array antenna to be placed within a unit cell. Each unit cell thus isolates an antenna element. The disclosed methods include passing energy between antenna elements and corresponding unit cells to characterize the performance of the antenna. An antenna test system as disclosed herein enables the costs associated with testing phased array antenna systems, including but not limited to antennas used in 5G communication systems, to be reduced as compared to prior techniques.

A reflection apparatus includes a base plate, where one side is used to dispose a radiation unit, and the other side is used to dispose a feeding network; a first side plate and a second side plate that are separately connected to the base plate and that are disposed opposite to each other, where the first side plate and the second side plate each extend relative to the base plate and toward the side used to dispose the feeding network; a first return plate connected to the first side plate, where the first return plate extends relative to the first side plate and toward a direction of the feeding network; and a second return plate connected to the second side plate, where the second return plate extends relative to the second side plate and toward the direction of the feeding network.

A semiconductor package includes a front redistribution structure having a first surface and a second surface, opposite to the first surface, a dielectric layer, an antenna substrate including a plurality of antenna members in the dielectric layer, a semiconductor chip having a connection pad connected to the plurality of antenna members, a conductive core structure having a first through-hole accommodating the antenna substrate and a second through-hole accommodating the semiconductor chip, and a rear redistribution structure including a conductive cover layer exposing an upper portion of the antenna substrate and covering an upper portion of the semiconductor chip, and a conductive via connecting the conductive cover layer to the conductive core structure.

An antenna assembly according to the present disclosure includes a dielectric substrate, and antenna elements configured as conductive patterns on the dielectric substrate to radiate radio signals. The antenna elements may include a first radiation structure and a second radiation structure. The first radiation structure includes a first conductive pattern electrically connected a first feeding portion, a second conductive pattern and a third conductive pattern electrically connected a ground. The second radiation structure includes a fourth conductive pattern electrically connected a second feeding portion and a fifth conductive pattern and a sixth conductive pattern electrically connected the ground. The first conductive pattern may be disposed between the second conductive pattern and the third conductive pattern.

A multi-band antenna includes a reflector, and a plurality of first radiating elements on the reflector. The plurality of first radiating elements are configured to radiate a first antenna beam(s) in a first frequency band responsive to at least one feed signal. A passive radiation-filtering element is provided, which extends proximate the first antenna beam(s). The passive radiation-filtering element includes at least one of a low-pass LC circuit, a band-pass LC circuit, and a high-pass LC circuit therein, which is configured to provide a lower frequency-dependent impedance to radiation within the first frequency band relative to radiation at frequencies outside the first frequency band. The passive radiation-filtering element may be configured as a multi-segment fence having capacitive and inductive elements therein, which are electrically coupled in series.

A substrate integrated waveguide fed antenna includes an electric dipole arrangement, a parasitic patch arrangement operably coupled with the electric dipole arrangement, and a feed structure. The feed structure includes a substrate integrated waveguide operably coupled with the electric dipole arrangement for exciting the electric dipole arrangement. A slotted conductive surface with a slot is arranged between the electric dipole arrangement and the feed structure for operably coupling the feed structure with the electric dipole arrangement.

An antenna arrangement suitable for a vehicle radar transceiver. The antenna arrangement includes a radiating layer having a surface, the surface delimited by a surface boundary. One or more apertures are arranged on the surface. The antenna arrangement further includes one or more surface current suppressing members arranged on the surface. The one or more surface current suppressing members are arranged to suppress a surface current from an aperture to the surface boundary. The one or more surface current suppressing members include one or more grooves.

Antennas and methods for using the same are described. In one embodiment, the antenna comprises an aperture having a plurality of radio-frequency (RF) radiating antenna elements, the plurality of RF radiating antenna elements being grouped into three or more sets of RF radiating antenna elements, with each set being separately controlled to generate a beam at a frequency band in a first mode.

The teachings of the present application generally provide a solution to one or more of the aforementioned needs by providing for a ultra-high frequency (UHF) antenna assembly which provides for a smaller package size with the same or better efficiency as a much larger antenna, particularly at 100 MHz to 500 MHz. Particularly, through the combination of components and structures for implementing frequency selective surfaces (FSS) and high impedance structures (HIS) in combination with an anisotropic magneto-dielectric material, the present teachings provide for the use of both lower and higher frequency techniques at 200 MHz to 400 MHz frequency range and miniaturization, accurately improving the performance of UHF satellite communication antennas. Specifically improving performance in narrowband, with increases in efficiency, bandwidth, and lowered elevation angle radiation characteristics.