Author(s): Chen B; Chen X; Cheng X; Da Y; Liu X; Gao S; Kishk AA;

A dual-band (K-/Ka-band) antenna array is presented. An ultra-wideband antenna element in the shape of a double-ridged waveguide is used as a radiation slot, and a novel dual-periodic ridge gap waveguide (RGW) with an interdigital-pin bed of nails (serving as a filter) is used to realize dual-band operation. By periodically arranging the pins of two diffe ...

Article GUID: 39204813

Author(s): Singh N; Khan T; Kumar S; Kanaujia BK; Choi HC; Kim KW; Rambabu K; Rengarajan SR; Kishk AA;

This paper proposes a circularly polarized ultra-thin flexible antenna with a flexible rectifier and power management unit (PMU) for smartwatch/wristband applications. The flexible antenna is compact (0.17?0 × 0.20?0 × 0.0004?0) and has a stepped ground plane. A parasitic element is used at the s ...

Article GUID: 38548782

Author(s): Zhang Y; Ogurtsov S; Vasilev V; Kishk AA; Caratelli D;

We review dielectric resonator antenna (DRA) designs. This review examines recent advancements across several categories, specifically focusing on their applicability in array configurations for millimeter-wave (mmW) bands, particularly in the context of 5G and beyond 5G applications. Notably, the off-chip DRA designs, including in-substrate and compact D ...

Article GUID: 38474958

Author(s): Hasheminasab M; Cheldavi A; Kishk AA;

Antenna arrays offer advantages in terms of spatial diversity, allowing for control over pattern specifications in space. The incorporation of frequency diversity in arrays presents an opportunity to manipulate beams in the Space-Time domain. Unlike conventional arrays, Frequency Diverse Arrays (FDA) with added frequency diversity exhibit time-variant and ...

Article GUID: 37482579

Author(s): Al-Alem Y; Sifat SM; Antar YMM; Kishk AA;

A unique high gain antenna array with a 3D-printed dielectric polarizer is proposed. The packaging of the antenna array feeding structure is eliminated by aggregating the feeding network in between the antenna elements. This has a significant advantage in maintaining neat and symmetric radiation characteristics with low cross-polarization levels. The prop ...

Article GUID: 37316512

Author(s): Abedian M; Khalily M; Wang F; Xiao P; Tafazolli R; Kishk AA;

A novel high-isolation, monostatic, circularly polarized (CP) simultaneous transmit and receive (STAR) anisotropic dielectric resonator antenna (DRA) is presented. The Proposed antenna is composed of two identical but orthogonally positioned annular sectoral anisotropic dielectric resonators. Each circularly polarized (CP) resonator consists of alternatin ...

Article GUID: 37045877

Author(s): Al-Alem Y; Sifat SM; Antar YMM; Kishk AA;

A simple antenna with a 20-dBi gain is proposed. A thorough analysis of the propagation mechanism accompanied by a unique physical insight is provided. The realized structure has a low profile, low-cost, and compact features. A detailed insight into applying the Fresnel-Huygens principle is provided.

Article GUID: 35411056