US 12,470,233 B2
Multiband multiplexer for carrier aggregation
Bambang Kunardi, Singapore (SG); Soon Ying Teoh, Singapore (SG); Poh Sen Lim, Singapore (SG); Guan Qiong Cui, Singapore (SG); Joerg Hornsteiner, Mittenwald (DE); Philippe Cortese, Glasgow (GB); Felipe De Los Rios, Munich (DE); and Sean Chun-Hsiang Yang, San Diego, CA (US)
Assigned to RF360 Singapore Pte. Ltd., Republic Plaza (SG)
Filed by RF360 SINGAPORE PTE. LTD., Republic Plaza (SG)
Filed on Aug. 17, 2022, as Appl. No. 17/820,494.
Claims priority of provisional application 63/236,010, filed on Aug. 23, 2021.
Prior Publication US 2023/0059854 A1, Feb. 23, 2023
Int. Cl. H04W 4/00 (2018.01); H04B 1/00 (2006.01); H04W 72/0453 (2023.01)
CPC H04B 1/0057 (2013.01) [H04W 72/0453 (2013.01)] 28 Claims
OG exemplary drawing
 
1. An apparatus for filtering one or more signals for wireless communications, the apparatus comprising:
a multiband multiplexer that includes a first filter element, a second filter element, a third filter element, and a fourth filter element:
wherein the first filter element is configured to have a first passband that spans a first predefined transmission frequency range of a first communication band, a second predefined transmission frequency range of a second communication band, and a third predefined transmission frequency range of a third communication band, wherein the first predefined transmission frequency range overlaps a portion of the second predefined transmission frequency range;
wherein the second filter element is configured to have a second passband that spans a first predefined reception frequency range of the first communication band, the second passband being distinct from the first passband;
wherein the third filter element is configured to have a third passband that spans a fourth predefined transmission frequency range of a fourth communication band, a fifth predefined transmission frequency range of a fifth communication band, and a sixth predefined transmission frequency range of a sixth communication band, the third passband being distinct from the first and second passbands;
wherein the fourth filter element is configured to have a fourth passband that spans a second predefined reception frequency range of the second communication band, the fourth passband being distinct from the first, second, and third passbands; and
wherein the first filter element, the second filter element, the third filter element, and the fourth filter element share a common port.