This paper proposes a simple novel technique for self-isolating MIMO antenna mm-wave applications. elements with inter-element separation of 0.2 mm ( <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math notation="LaTeX">$0.023\lambda $ </tex-math></inline-formula> at 35 GHz) and measured high isolation (>50 dB) are presented. By observing the concentration surface waves on radiating patch, several rigorously optimized slots...

System-on-chip (SoC) has become an attractive solution to achieve highly integrated wireless systems. However, the antenna-on-chip (AoC) suffers from poor radiation due lossy silicon substrate in standard complementary metal–oxide–semiconductor (CMOS) processes. Artificial magnetic conductors (AMCs) with ground plane above can enhance radiation; however, fitting AMC completely thin stack-up (~10–15 <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML"...

Millimeter-wave (mm-wave) and subterahertz (sub-THz) technologies have attracted considerable research interest because of their potential to fulfill the dramatically increased demands for highly compact large data-rate communication system. Due small antenna size in such a high-frequency range, probe-based measurement, rather than connector-based, plays critical role characterization. However, there are multiple challenges associated with including probe metallic shell reflection,...

An antenna-on-chip (AoC) suffers from low radiation efficiency and gain because of the highly conductive silicon (Si) substrate used in standard complementary metal–oxide–semiconductor (CMOS) processes. Placing an artificial magnetic conductor (AMC) surface underneath AoC not only isolates antenna lossy but also boosts its performance through in- phase reflection. Ideally, AMC, which has a periodic structure, should be infinite size, practical chip sizes limit dimensions. The AMC-backed...

To fulfill the growing demand of next-generation wireless devices, additive manufacturing has emerged as most economical, environmentally friendly, and high-throughput technique for mass manufacturing. At present, however, 3D-printed antenna substrates show 4%–8% variation in relative permittivity <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math notation="LaTeX">$(\varepsilon _{r})$ </tex-math></inline-formula> compared with...

Silicon-based complementary metal oxide semiconductor (CMOS) process has become one of the most popular processes to realize system-on-chip (SoC). However, as essential components wireless SoC, antennas are typically suffering from poor radiation because highly conductive silicon substrate. Such known antenna-on-chip (AoC). To enhance performance AoC, artificial magnetic conductors (AMC) with double periodic strip structure layers been proposed in this paper that can not only provide...

RFID Tags, typically, require ultra-small antennas and at 900 MHz most of the designs end up being meandered line wire antennas. These may not be suitable because such are heavily influenced by object on which they placed. An antenna with a ground plane, as microstrip antenna, is more candidate in that scenario, however, typically micrsotrip patch large size. In this paper, we introduce highly miniaturized multiple slots superstrate high-permittivity material. The size 900MHz reduced 87.5%...

In the era of Internet Things (IoT) and wearable electronics; printing technique, such as screen printing, is becoming popular because their lower costs mass manufacturing abilities. However, most previous work has been done on metallic patterns not substrates. this paper, we introduce a custom printable dielectric ink (polymer mixed with ceramics), which provides loss even at millimeter-wave (mm-wave) bands. With help silver nanowires (AgNW) based ink, multilayer, fully screen-printed...

System-on-Chip has become an excellent solution for the high-level integration of systems. However, primary barrier is insufficient radiation from on-chip antenna due to lossy silicon substrate. In this paper, ultra-thin artificial magnetic conductor (AMC) surface proposed whose ground plane on top substrate isolate it completely, and thickness reduced house AMC within oxide layer standard CMOS process by employing metal vias in stack-up. The structure implanted a 94 GHz monopole shows gain...

Electromagnetic radiation harm human health serious, indoor household appliances electromagnetic spectrum, not only more, but also broad.In order to effectively detect the wave, paper puts forward an antenna detection, using slotted and add a high impedance method such as micro-strip broadening broadband antenna.Through simulate analysis of HFSS, The results show that-10dB return loss bandwidth covers frequency range between 0. 14 GHz and6. 3 GHz.In other words, relative is 191.3%.

Artificial magnetic conductors (AMC) employed underneath the antenna-on-chip (AoC) can provide in-phase reflection as well isolation from lossy silicon substrate. The gain of an AMC-backed AoC is proportional to AMC area. However, relatively large cannot be illuminated effectively due limited space in stack-up. This means achieve its optimum performance. In this paper, we propose resolve issue through custom-designed coupling enhancement structures (CESs), which enable energy...

Due to design freedom, waste minimization, and capability construct complex geometries, additive manufacturing is a promising candidate for large-scale of radiofrequency (RF) components. However, 3D-printed microwave substrates suffer from relative permittivity variation 4-9%. Thus, the antennas realized on these can have variations in their intended resonant frequencies. This issue critical narrow-band microstrip patch (MPA). In this work, we propose an easy-to-implement post fabrication...