Nested capacitively loaded loops achieve circular polarization, resolving the trade-off between compact antenna size and extended reading distance.
A liquid crystal scanning antenna uses phase shift units with different electrical lengths to control microwave signals via a single bias voltage.
A radio frequency transmitter multiplexes frequency-shifted beamforming signals onto a single interconnect path.
Nested concentric circular elements with optimized port spacing achieve high port isolation, resolving mutual coupling issues in low-profile RFID readers.
Shared-element dipole structures reduce the antenna count from eight to four while maintaining cross-polarization isolation.
Tapered tip ends on the ground conductor reduce diffracted waves, lowering manufacturing costs and supporting multi-channel operations.
Monolithic photonic integrated circuit replaces heavy RF beamforming networks with optical components to reduce system weight and volume.
A single printed circuit board integrates a copper layer waveguide with high-frequency laminates to route radar signals.
Stripline feed between primary radiating and tuning slots achieves lightweight electronic beam steering without mechanical gimbals.
A Van Atta antenna array with patch elements and substrate integrated waveguides provides retro-reflection.
A planar antenna uses a metallic mesh cap to achieve high radiation gain at millimeter-wave frequencies.
Selective antenna connection via RF signal processing reduces inter-antenna interference and optimizes PCB layout.
An integrated mm-wave radar detects driver fatigue by analyzing simultaneous heartbeat and respiratory dynamics without physical contact.
Segmented support structures enable selective diversity switching, improving transmission efficiency without increasing manufacturing complexity.
A transparent antenna device uses opposing surface patterns to lower resistance and improve near field communication efficiency.
Digital beamformer and power split network reduce transceiver count, lowering cost and power consumption while maintaining beamforming performance.
Adjusting feed point distance and element length improves radiation efficiency while maintaining return loss without requiring complex antenna switches.
A base station antenna assembly uses a power coupling circuit to feed RF signal sub-components to radiating elements in a power-reduced manner.